GRI ENERGY RESOURCES, INC

PRESENTS

HydroCarbon SolutionsHydroCarbon Solutions Inc.Inc.TMTM

Providing Solutions to integrity assurance challenges in Production Providing Solutions to integrity assurance challenges in Production

OperationsOperations

HydroCarbon SolutionsHydroCarbon Solutions Inc.Inc.TMTM WHO WE AREWHO WE ARE

• HydroCarbon SolutionsHydroCarbon Solutions Inc.Inc.TMTM creates creates revolutionary solutions for the Oil and Gas revolutionary solutions for the Oil and Gas Industry. Industry.

• HCS creates new products that protects the HCS creates new products that protects the environment, improve worker safety and environment, improve worker safety and increase our customer's profit.increase our customer's profit.

• Hydrocarbon Solutions is a Hydrocarbon Solutions is a PROBLEM PROBLEM SOLVERSOLVER. .

• We have produced innovative products, We have produced innovative products, significantly more effective and very different significantly more effective and very different in composition from our competitors. in composition from our competitors.

OUR MISSIONOUR MISSION

• HCS is focused on research and HCS is focused on research and development, dedicated to development, dedicated to discovering, safe, effective, cost-discovering, safe, effective, cost-saving solutions for the following saving solutions for the following areas of production, transport and areas of production, transport and storage:storage:

• Large Storage TanksLarge Storage Tanks• PipelinesPipelines• Ocean TankersOcean Tankers

The advantages of using our chemicals and process

• No Inventory Loss• Convert Tank Bottoms to Salable Product• Limits Environmental Liability• No Disposal Costs• No Trucking Expense• Reduces Down Time for Tank Cleaning Crew• Out of Service Time Greatly Reduced• Tanks are Clean

COST EFFECTIVECOST EFFECTIVE• HCS products are used in substantially smaller volumes HCS products are used in substantially smaller volumes

than conventional chemical treatments. than conventional chemical treatments. • Out of service time is reduced to just days instead of Out of service time is reduced to just days instead of

weeks or months as in conventional methods. weeks or months as in conventional methods. • Routine tank management can be undertaken in just Routine tank management can be undertaken in just

days using your plant personnel with our concentrated days using your plant personnel with our concentrated chemicals and processes. Chemical costs are reduced chemicals and processes. Chemical costs are reduced and become more controllable. and become more controllable.

• Tank bottoms are recovered and a potential Tank bottoms are recovered and a potential environmental hazard becomes usable salable environmental hazard becomes usable salable product.product.

• When it is necessary to recertify or to repair tanks, any When it is necessary to recertify or to repair tanks, any residual bottom is softer and easier to remove.residual bottom is softer and easier to remove.

Expenses are converted to sales as Expenses are converted to sales as liabilities are converted to assets liabilities are converted to assets (See (See actual case studies attached.)actual case studies attached.)

Paraffin wax and asphaltenes Paraffin wax and asphaltenes precipitate trapping water and precipitate trapping water and

inorganic sedimentinorganic sediment

STORAGE TANKS - WIN BACK VALUABLE HYDROCARBONS

• Shore based crude oil storage tanks contain up to 1,000,000 bbls of Shore based crude oil storage tanks contain up to 1,000,000 bbls of oil and are cleaned for inspection on five to ten year cycles. During oil and are cleaned for inspection on five to ten year cycles. During this time paraffin wax and asphaltenes precipitate trapping water and this time paraffin wax and asphaltenes precipitate trapping water and inorganic sediment in an uneven profile on the tank floor. Bottom inorganic sediment in an uneven profile on the tank floor. Bottom levels are typically three feet to five feet representing volumes of levels are typically three feet to five feet representing volumes of 2,000 to 10,000 bbls tank bottom and often much, much more.2,000 to 10,000 bbls tank bottom and often much, much more.

• Effective storage capacity is reduced by the presence of Bottom Effective storage capacity is reduced by the presence of Bottom Sludge (BS). Sludge (BS).

• Tank BS in general is only removed when the tank has a maintenance Tank BS in general is only removed when the tank has a maintenance need, planned or emergent. At this time, need, planned or emergent. At this time, removal is costlyremoval is costly, hazardous , hazardous and time-consuming often creating environmental and safety and time-consuming often creating environmental and safety challenges. challenges. This results in inventory headaches for operations This results in inventory headaches for operations and procurement staff.and procurement staff.

• (API 2016) requires tanks to be cleaned without man entry where (API 2016) requires tanks to be cleaned without man entry where possible. possible.

Oil Company’s seek innovative solutions for safe, cost Oil Company’s seek innovative solutions for safe, cost effective and predictable recovery of inventory and tank effective and predictable recovery of inventory and tank cleaning.cleaning.

EPR improved our tank cleaning process:

• Recovered 5000 bbls of crude versus disposing• Reduced manpower by 50%• Reduced disposal by 99%• Reduced safety risk• Reduced environmental risk• Generated revenue from recovered crude• Cleaned tank extremely well, reduced post

clean up by 75%• Reduced cost of clean out by 75%

HCS develops specialty HCS develops specialty solutionssolutions

• HCS develops specialty solutionsHCS develops specialty solutions that that improve the flow properties of crude oils improve the flow properties of crude oils in production and refining applications. in production and refining applications. One such innovation is the development One such innovation is the development of modifiers that break BS down to a fluid of modifiers that break BS down to a fluid that can be easily transported while that can be easily transported while inhibiting paraffin deposits. inhibiting paraffin deposits.

• Our Our HCS Tank Cleaner HCS Tank Cleaner proves to proves to be the be the most effective chemical product available most effective chemical product available to recover tank bottoms converting a to recover tank bottoms converting a problem into salable products.problem into salable products.

HCS Tank Cleaner Applications

Applying HCS products

Application Procedure for HCS Tank Application Procedure for HCS Tank CleanerCleaner

• With the tank still in limited storage service the BS With the tank still in limited storage service the BS breaking chemicals are pumped into the tank using breaking chemicals are pumped into the tank using vacuum trucks or pumps. vacuum trucks or pumps.

• The bottom is liquefied and diluted with fresh The bottom is liquefied and diluted with fresh inventory, circulated and pumped out as salable inventory, circulated and pumped out as salable product. This procedure is completed in just a few product. This procedure is completed in just a few days. days.

• The chemicals are safe to handle, are recoverable The chemicals are safe to handle, are recoverable into the oil phase and cause no downstream process into the oil phase and cause no downstream process concerns. No need for storage capacity loss. concerns. No need for storage capacity loss.

• Elimination or reduction in extended man-hours Elimination or reduction in extended man-hours spent in explosive atmospheres while manually spent in explosive atmospheres while manually cleaning.cleaning.

No need for expensive disposal fees. No need for expensive disposal fees. Out of Out of service times are greatly reduced.service times are greatly reduced.

PREDICTABLE

• HCS researches every sample of tank-bottom HCS researches every sample of tank-bottom received from its customers and determines received from its customers and determines the percentage of saleable bottom. We make the percentage of saleable bottom. We make recommendations to encourage optimum recommendations to encourage optimum results from low dose rates. Product samples results from low dose rates. Product samples and MSDS sheets can be provided for client and MSDS sheets can be provided for client verification.verification.

• Advice is independent and always supported Advice is independent and always supported by actual results.by actual results.

OUR PROCESS - TANKS• Introduce HCS tank cleaner using a Introduce HCS tank cleaner using a

vacuum truck or pump in tank bottom vacuum truck or pump in tank bottom with a low fluid level that will allow with a low fluid level that will allow mixer to function.mixer to function.• Mix the chemical, tank bottom and Mix the chemical, tank bottom and

crude oil to the optimum ratio.crude oil to the optimum ratio.• Roll the combination with a static mixer Roll the combination with a static mixer

for a predetermined amount of time.for a predetermined amount of time.• Produce into tank at the maximum Produce into tank at the maximum

volume to insure a good blend.volume to insure a good blend.

The advantages of using our chemicalsThe advantages of using our chemicals• The advantages of using our chemicals and The advantages of using our chemicals and

process include:process include:– NO INVENTORY LOSSNO INVENTORY LOSS– CONVERT TANK BOTTOMS TO SALABLE PRODUCTCONVERT TANK BOTTOMS TO SALABLE PRODUCT– LIMITS ENVIRONMENTAL LIABILITYLIMITS ENVIRONMENTAL LIABILITY– NO DISPOSAL COSTSNO DISPOSAL COSTS– NO TRUCKING EXPENSENO TRUCKING EXPENSE– REDUCES DOWN TIME FOR TANK CLEANING CREWREDUCES DOWN TIME FOR TANK CLEANING CREW– OUT OF SERVICE TIME GREATLY REDUCEDOUT OF SERVICE TIME GREATLY REDUCED– TANKS ARE CLEANTANKS ARE CLEAN– TURNS A LIABILITY INTO A PROFITTURNS A LIABILITY INTO A PROFIT– REDUCED CONTRACTOR LIABILITYREDUCED CONTRACTOR LIABILITY

HCS PARAFFIN INHIBITORHCS PARAFFIN INHIBITORTMTM––

• Performance features:Performance features:• Freeze thaw stableFreeze thaw stable• They are viscous with high cling characteristicsThey are viscous with high cling characteristics• They mix well with water or crude and are They mix well with water or crude and are

enhanced by the presence of gas.enhanced by the presence of gas.• Hydrocarbon Solutions Inc.Hydrocarbon Solutions Inc.TM TM productsproducts are are

contact agents, designed specifically to clean contact agents, designed specifically to clean and coat surfaces they touch.and coat surfaces they touch.

HCS Pipeline Cleaner• HCS Pipeline Cleaner is a surfactant

hydrocarbon blended product.• It is freeze thaw stable.• It is very viscous with high cling

characteristics with a water like consistency

• One of the side effects of this product is that of a drag reducer.

• It also causes water to break out of the crude oil makes water separators and heater treater’s more efficient

• It mixes well and is enhanced by the presence of gas.

HCS PARAFFIN INHIBITORHCS PARAFFIN INHIBITORTMTM––

• Uses:Uses:• Down hole treatments Down hole treatments • PipelinesPipelines• Tanks and batteriesTanks and batteries• Gas wellsGas wells

Benefits:Benefits:

• Down hole treatments with water Down hole treatments with water as a carrieras a carrier–Produced oil remains on the surface Produced oil remains on the surface

and lift costs are reducedand lift costs are reduced–Stress to formation is reduced by Stress to formation is reduced by

eliminating hot oilingeliminating hot oiling–No production time is lostNo production time is lost–Positive downstream effectsPositive downstream effects–Use of proactive treatment will prove Use of proactive treatment will prove

to be cost effectiveto be cost effective

PipelinesPipelinesTanks & BatteriesTanks & Batteries

• PipelinesPipelines– Small volumes and very cost effectiveSmall volumes and very cost effective– Can be used with or without piggingCan be used with or without pigging– Application is very easyApplication is very easy

•   Tanks & BatteriesTanks & Batteries– Bottoms are soldBottoms are sold– No disposal costsNo disposal costs– Tanks are cleanTanks are clean– No downtimeNo downtime– Limited loss of inventoryLimited loss of inventory

TANK # 1286, JAL, NEW MEXICO, JULY TANK # 1286, JAL, NEW MEXICO, JULY 31, 200731, 2007

– 122,000 BBL CRUDE TANK WITH WORKING VOLUME OF 122,000 BBL CRUDE TANK WITH WORKING VOLUME OF 108,000 BBLS108,000 BBLS

– CHALLENGE:CHALLENGE:• GAUGED ESTIMATED 1 FOOT BOTTOMGAUGED ESTIMATED 1 FOOT BOTTOM

– SOLUTION:SOLUTION:• TREATED WITH HCS TANK CLEANER INJECTED WITH A TREATED WITH HCS TANK CLEANER INJECTED WITH A

VACUUM TRUCK. CIRCULATED FOR 6 DAYS USING TANK VACUUM TRUCK. CIRCULATED FOR 6 DAYS USING TANK MIXER.MIXER.

– RESULTSRESULTS::• SALVAGED 1530 BBLS OF SALABLE PRODUCT VALUE OF SALVAGED 1530 BBLS OF SALABLE PRODUCT VALUE OF

PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING ($57.60/BBL)($57.60/BBL) $88,128. $88,128. LESS COST OF HCS TANK CLEANER LESS COST OF HCS TANK CLEANER $11,000.$11,000.– NET GAIN = $77,128.NET GAIN = $77,128.

TANK # 1448, MIDLAND, TEXAS, AUGUST 15, 2007TANK # 1448, MIDLAND, TEXAS, AUGUST 15, 2007– 122,000 BBL CRUDE TANK WITH WORKING 122,000 BBL CRUDE TANK WITH WORKING

VOLUME OF 110,000 BBLSVOLUME OF 110,000 BBLS– CHALLENGE:CHALLENGE:

• GAUGED ESTIMATED BOTTOM OF 2.8 FEET GAUGED ESTIMATED BOTTOM OF 2.8 FEET (6,100BBLS)(6,100BBLS)

– SOLUTION:SOLUTION:• TREATED WITH HCS TANK CLEANER INJECTED WITH TREATED WITH HCS TANK CLEANER INJECTED WITH

VACUUM TRUCK. CIRCULATED FOR 13 DAYS USING VACUUM TRUCK. CIRCULATED FOR 13 DAYS USING TANK MIXER.TANK MIXER.

– RESULTS:RESULTS:• SALVAGED 3,249 BBLS OF SALABLE PRODUCT SALVAGED 3,249 BBLS OF SALABLE PRODUCT

VALUE OF PRODUCT RECOVERED AT WEST TEXAS VALUE OF PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING ($61.95/BBL) $SOUR POSTING ($61.95/BBL) $201,275. 201,275. LESS COST LESS COST OF HCS TANK CLEANER $11,000.OF HCS TANK CLEANER $11,000.–NET GAIN = $190,275.NET GAIN = $190,275.

TANK # 1447, MIDLAND, TEXAS, SEPTEMBER 5, 2007TANK # 1447, MIDLAND, TEXAS, SEPTEMBER 5, 2007– 122,000 BBL CRUDE TANK WITH WORKING 122,000 BBL CRUDE TANK WITH WORKING

VOLUME OF 110,000 BBLSVOLUME OF 110,000 BBLS– CHALLENGE:CHALLENGE:• GAUGED ESTIMATED BOTTOM OF 5,600 BBLSGAUGED ESTIMATED BOTTOM OF 5,600 BBLS

– SOLUTION:SOLUTION:• TREATED HCS TANK BOTTOM CLEANER INJECTED WITH TREATED HCS TANK BOTTOM CLEANER INJECTED WITH

VACUUM TRUCK. CIRCULATED FOR 36 DAYS WITH TANK VACUUM TRUCK. CIRCULATED FOR 36 DAYS WITH TANK MIXER.MIXER.– RESULT:RESULT:• RECOVERED 1,500 BBLS OF SALABLE PRODUCT RECOVERED 1,500 BBLS OF SALABLE PRODUCT

VALUE OF PRODUCT RECOVERED AT WEST TEXAS VALUE OF PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING ($65.25) SOUR POSTING ($65.25) • $97,875. $97,875. LESS COST OF HCS TANK CLEANER LESS COST OF HCS TANK CLEANER

$11,000.$11,000.–NET GAIN = $86,875.NET GAIN = $86,875.

TANK # 1718, MONAHANS, TEXAS, TANK # 1718, MONAHANS, TEXAS, SEPTEMBER 20, 2007SEPTEMBER 20, 2007

• TANK # 1718, MONAHANS, TEXAS, SEPTEMBER TANK # 1718, MONAHANS, TEXAS, SEPTEMBER 20, 200720, 2007

•   – 80,000 BBL CRUDE TANK WITH WORKING 80,000 BBL CRUDE TANK WITH WORKING

VOLUME OF 70,000 BBLSVOLUME OF 70,000 BBLS– CHALLENGE:CHALLENGE:• 3.5 – 4.0 FOOT BOTTOMS3.5 – 4.0 FOOT BOTTOMS

– SOLUTION:SOLUTION:• TREATED WITH HCS TANK CLEANER AND MIXED TREATED WITH HCS TANK CLEANER AND MIXED

WITH TANK MIXER FOR 5 DAYSWITH TANK MIXER FOR 5 DAYS– RESULTS:RESULTS:• TOTAL BOTTOMS BACK IN SOLUTION AND TOTAL BOTTOMS BACK IN SOLUTION AND

SHIPPED AS SALABLE PRODUCT. CUSTOMER SHIPPED AS SALABLE PRODUCT. CUSTOMER TOTALLY SATISFIED.TOTALLY SATISFIED.

TANK # 56-008, COLORADO CITY, TANK # 56-008, COLORADO CITY, TEXAS, NOVEMBER 6, 2007,TEXAS, NOVEMBER 6, 2007,

– 50,000BBL TANK WITH WORKING 50,000BBL TANK WITH WORKING VOLUME OF 49,000BBLSVOLUME OF 49,000BBLS

– CHALLENGE:CHALLENGE:• 7 FOOT BOTTOMS7 FOOT BOTTOMS

– SOLUTION:SOLUTION:• TREATED WITH HCS TANK CLEANER TREATED WITH HCS TANK CLEANER

INJECTED WITH A VACUUM TRUCK TOTAL INJECTED WITH A VACUUM TRUCK TOTAL TANK BEING MIXED WITH INTERNAL TANK TANK BEING MIXED WITH INTERNAL TANK MIXERMIXER

– RESULTS:RESULTS:• RESULTS NOT REPORTED-Customer HappyRESULTS NOT REPORTED-Customer Happy

TANK # 1690, WINK, TEXAS, NOVEMBER 12, 2007TANK # 1690, WINK, TEXAS, NOVEMBER 12, 2007–80,000BBL TANK WITH WORKING 80,000BBL TANK WITH WORKING

VOLUME OF 70,000 BBLSVOLUME OF 70,000 BBLS–CHALLENGE:CHALLENGE:• 14 – 15 FOOT BOTTOMS14 – 15 FOOT BOTTOMS

–SOLUTION:SOLUTION:• TREATED WITH HCS TANK CLEANER TREATED WITH HCS TANK CLEANER INJECTED WITH A VACUUM TRUCK.INJECTED WITH A VACUUM TRUCK.–TANK BEING MIXED WITH INTERNAL TANK BEING MIXED WITH INTERNAL MIXERSMIXERS

– RESULTS:RESULTS: • RESULTS NOT REPORTEDRESULTS NOT REPORTED

TANK # 2421, MIDLAND, TEXAS, TANK # 2421, MIDLAND, TEXAS, DECEMBER 11, 2007DECEMBER 11, 2007• a. Project in focus a. Project in focus - 122,000 BBL CRUDE TANK WITH WORKING VOLUME OF - 122,000 BBL CRUDE TANK WITH WORKING VOLUME OF

110,000 BBLS110,000 BBLS• b. CHALLENGE:b. CHALLENGE:• GAUGED ESTIMATED BOTTOM OF 4,400 BBLS. (UNDESTIMATED by 3600 bbls)GAUGED ESTIMATED BOTTOM OF 4,400 BBLS. (UNDESTIMATED by 3600 bbls)• SOLUTION:SOLUTION:

• SUGGESTED TREATMENT WITH HCS TANK BOTTOM CLEANER.SUGGESTED TREATMENT WITH HCS TANK BOTTOM CLEANER.• ACTUAL TREATMENT OF 330 GALLONS OF HCS TANK BOTTOM CLEANER ACTUAL TREATMENT OF 330 GALLONS OF HCS TANK BOTTOM CLEANER

INJECTED WITH VACUUM TRUCK. CIRCULATED FOR 15 DAYS WITH TANK INJECTED WITH VACUUM TRUCK. CIRCULATED FOR 15 DAYS WITH TANK MIXER.MIXER.

• d. RESULT:d. RESULT:• RECOVERED 5000 BBLS OF SALABLE PRODUCTRECOVERED 5000 BBLS OF SALABLE PRODUCT

•   • VALUE OF PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING VALUE OF PRODUCT RECOVERED AT WEST TEXAS SOUR POSTING

($94.25) ($94.25) • $471,250.$471,250. LESS COST OF HCS TANK CLEANER $16,500.LESS COST OF HCS TANK CLEANER $16,500.

– NET GAIN = $454,750. Not including the cost of vacuum NET GAIN = $454,750. Not including the cost of vacuum truck ($300)truck ($300)

• ee. . NEW TANK MIXER WAS TO BE INSTALLED BUT NEVER DONE. NEW TANK MIXER WAS TO BE INSTALLED BUT NEVER DONE. • f.f. Although the mixer was not changed and Although the mixer was not changed and the bottom under grossly the bottom under grossly

estimated estimated we were still able to achieve success.we were still able to achieve success.

Midland Station Tank 2421

• Midland Station Tank 2421 removed from service 12-11-2007. Midland Station personnel and Contract personnel prepare for an API-653 inspection. The tank was initially pumped down and landed on low legs. The 30”by 60” roof man-way removed to conduct a visual inspection. Upon removal of the roof man-way there was five to six thousand barrels of non-pumpable BS&W in the tank. Prior experience with this type of BS&W and the cost associated with removing the material and cost of disposal we decided to try to treat the material. Hydrocarbon Solutions, LLP contracted to attempt to treat the material.

• Hydrocarbon Solutions, Inc pumped 330 gallons of chemical into the tank 12-18-2007, followed by Midland Station Operation personnel pumping eight thousand barrels of sweet crude to Tank 2421. Tank 2421 isolated and the mixer ran for one week.

• Note: (The mixer on Tank 2421 is an old lightning mixer that is belt driven, so the efficiency is very low.)

Midland Station Tank 2421

• Tank 2421 filled with sixty thousand barrels of off-spec sweet crude 01-02-2008. Tank 2421 drained 01-07-2008. Tank 2421 opened up for inspection. The five thousand barrels of material are now merchantable crude that can be pumped into our system. Contract personnel start pumping material into our system. Contract personnel complete the pumping and clean-out of Tank 2421 in 14 days.

• Midland Station reduced tank clean-out time by fifty percent. The disposal reduced by ninety-nine percent; we hauled two roll-off bends of sand to disposal. We recovered several thousand barrels of crude. Hydrocarbon Solution, Inc tank cleaning process saved Midland Station money, labor, reduced our environmental/safety risk and liabilities.

Hydrocarbon Solution, Inc

• Hydrocarbon Solution, Inc improved our tank cleaning process:• Recovered 5000 bbls crude versus disposing• Reduced manpower 50%• Reduced disposal 99%• Reduced safety risk• Reduced environmental risk• Generated revenue from recovered crude• Cleaned tank extremely well, reduced post clean up 75%• Reduced cost of clean out 75%• For additonal information please feel free to contact me at the

following:

Goldsmith TXGoldsmith TX• Crude Pipelines 2-3 miles in length.Crude Pipelines 2-3 miles in length.• Batch treatment of chemical before the pig on a weekly- bi-Batch treatment of chemical before the pig on a weekly- bi-

weekly and monthly intervals. weekly and monthly intervals. • The customer has been doing proactive treatments that The customer has been doing proactive treatments that

have been ongoing for 4 years.have been ongoing for 4 years.• Prior to treating with our chemical the line experienced Prior to treating with our chemical the line experienced

blockage and had to be dug up and repaired every winter. blockage and had to be dug up and repaired every winter. It was common to have long streams of paraffin to dispose It was common to have long streams of paraffin to dispose of. of.

• The line has been operating without being dug up since The line has been operating without being dug up since using our paraffin chemical.using our paraffin chemical.

• There is a substantial reduction of paraffin disposal.There is a substantial reduction of paraffin disposal.• Chemical is batch treated or directly injected If batch Chemical is batch treated or directly injected If batch

treated it is always before the pig.treated it is always before the pig.• Results are visible once the pig is received... Results are visible once the pig is received... • Very little residue, Paraffin stays suspended in the crude oil.Very little residue, Paraffin stays suspended in the crude oil.

Gulf of Mexico Offshore Pipelines to Texas City

Our Paraffin chemistry has been used successfully for three years with a

major producer. It is injected directly into the transport lines on a

continuous basis.

  Our Products:• HCS Tank Cleaner • HCS Pipeline Cleaner• HCS Paraffin Inhibitor• HCS Raven Waste Water H2S Treatment• HCS HFX All Purpose Cleaner/Degreaser (Food

Grade Deck/Rig Wash)• HCS Oil Spill Absorbent

Flowable BS Level in Tank

First Rule DONT MAKE A MESS!Did Good

Old mixer in foreground with new Jensen Variangle installed

The moment of truth

Water draw and material. Product level at this point is approx 3 inches.

New mixer prop

Tank shell and rivets. There was no additional cleaning done to the

shell

Tank roof and roof drain piping. Again, no additional cleaning.

Roof and rim space

Old foam log seal found during cleaning. This material had been getting into the owners piping and had been causing problems with strainers and meters.