built bait tank-any insulation suggestions?

after searching for a filtrated and aereated bait tank that was in my budget and coming up empty i had to go to the drawing board and make my own–pretty good design i came up with -basically a 55 plastic drum cut in half with the top cut with a flange and put inside the bottom section w a access door on top–for aereation i used a peice of 4" pvc w rubber cap on bottom stood up at back of tank thru a 4"hole and cut flush w top–put my keepalive aereator on bottom with discharge tubing running outof hole i drilled in 4"and sealed around edges–right below water level i drilled hole and screwed in a 1"male fitting thru 4" and elbowed 1" pipe to bottom of tank with a cap on it–drilled several 5/16 holes around cap and by the water pressure of the tank it naturally flows up the 1"pipe keeping the 4" full–used a peice of buffer pad cut to fit inside 4" and some pillow stuffing on top of that for filtration–whole assembly can be pulled out of tank for cleaning–works like its supposed to and really only cost about 20 bucks minus pump --if i was computer literate i would post some pics but have tried in the past with no luck:frowning_face:do yall have any suggestions on what i can use to insulate it that will take a little abuse? really dont want to deal with fiberglass blowing back on me while im crusing since it sits on deck in front of console

84 HYDRA SPORT 1800SS
89 Yamaha 150
‘BAD HABIT’
89 TRACKER 17 TX
MERC 50
‘OL LEAKY’

I used a blue foam sleeping pad that you would use for camping. It’s about 1/2" thick. After I cut it to size, I coated it with spray on adhesive and stuck it on the barrel. Then I taped the whole thing with white “heat shrink” tape(the stuff they use for shrink wrapping boats for shipping). I’ve been using it for two yrs. without a problem.

Bob Van Gundy
Marine Designs,Inc.
Custom Aluminum Fabrication
803-727-4069

I use this type of insulation I picked up at Lowes. It works real well, durable and is easy to work with. I need to replace a couple of pieces on top, but it’s been a few years since I last had to touch it.

'07 198 DLX Carolina Skiff
FS90 Suzuki

Look around the back of a convenice store and ck to see if there are any round beer/soda display coolers and ask for one, I have been given 4 or 5 ! They are foam insulated and lined inside and out with pvc. Cut off the botton that is hollow and cut a lid of foam board. holds about 20 gal and works well in a small boat or use 2 in a larger boat!