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#1
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Floor board Support/PT wood
Access panel above my as tank needs a little support. I pulled it up and to no surprise, it need more support boards. The few that it has have started to rot. Question.. is it a bi deal if I use pressure treated wood? I know it wont last as long, but if I check on it in a few years, whats the big deal? It would be better than it is now. It was good to now the tank was a new custom 2007 aluminum 54 gallon
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1986 V-20 2001 Mercruiser 4.3L 
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#2
04-15-2015, 08:15 PM
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PT board and aluminum do NOT go together. It is a HUGE no no to put pressure treated boards around aluminum due to the chemicals used to pressure treat boards.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#3
04-15-2015, 08:31 PM
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Yep bad news... IE holes in the tank
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#5
04-16-2015, 03:24 AM
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well.... that is good to know.. that is why we ask the experts! yes the boards has rubber pads so they do not touch tank. not sure what wood was used since it it old and brown
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1986 V-20 2001 Mercruiser 4.3L
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#6
04-16-2015, 05:20 PM
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If your going to ck it from time to time just use regular 2x4. Other wise I would use some of that plastic board they sell, will last forever!
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1986 V20  Old Fishermen never die, we just SMELL that way!!
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#7
04-16-2015, 06:10 PM
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Please make sure that the strips are not rubber. Rubber will corrode the Aluminum.
http://marinesurvey.com/yacht/fueltank.htm Suggestion is to glue some plastic strips where the wood will make contact with the tank. Even having the wood contact the tank will cause it to corrode.
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1990 Wellcraft Fish 18 in repair now! Pictures coming soon!
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#8
04-16-2015, 06:44 PM
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Personally for the minimal effort involved... Just glass regular wood to the bottom of the hatch.... $50 and 2-3 hours and you can look at it again in 15 years.
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#9
04-16-2015, 07:12 PM
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Since I changed my tank, I have pulled the lid every year, inspected, and resealed with silicone.
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1984 V20 "Express" & 2003 Suzuki DF140 (SOLD!) 2000 GradyWhite 265 Express YouTube/SkunkBoat https://www.youtube.com/channel/UC4F...znGospVOD6EJuw Transom Rebuild https://www.youtube.com/watch?v=EEz94NbKCh0 https://www.youtube.com/watch?v=Oe_ZmPOUCNc
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#10
04-16-2015, 08:07 PM
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putting a piece of wood in and re-glassing seems like more work tan (one of my keys isn't working) adding wood supports. I don't mind lifting and inspecting periodically , but I would like to do it rigt so eiter way is fine. wat doesn't corrode aluminum? seems like sensitive material
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1986 V-20 2001 Mercruiser 4.3L
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