Our Mk2 Catalina 36
has 3 potable water tanks
. #1 = 35 gal under the V berth, #2 = 21 gal mid tank behind the engine
and #3= 21 gal startboard aft. We also have a 16 gph watermaker
Each of these tanks
has a dedicated deck
fill and vent. The aft starbord tank is fussy and likes to leak when full. I put a large O ring round the clean-out and it’s better, but that said I keep the tank empty.
This same boat
has a 25 gal diesel fuel tank
and more fuel
capacity would be nice.
I looked into having an aluminum fuel tank
fabricated to replace the aft Starboard water
tank. Instead of making it a full service fuel
tank the current
thinking is to utilize our spare lift pump
and batch fuel into the main tank when needed.
The tank resides in a molded in compartment with a wood
lid screwed in place.
Does this solution sound workable? Any obvious ABYC or other standards design flaws?
I’d appreciate input and ideas.