Need A New Head Tank

[1970Columbia34]

Well my parents called and they have a crack in the head tank on our boat. here is a picture of what we have (toilet sits right on top of tank) I am wondering where we can get a new tank, the existing tank could be fixed but would rather start fresh with a new tank.



Thanks Scott

[sailingdog]

What are the dimensions of the tank?

[1970Columbia34]

18" Wide, 16" Deep, 8" Tall and has 3 holes in the top 1.5, 2.5, .75 threaded for plumbing fittings.

[jbondy]

How about:



It's by Sealand and costs < $400. It comes as a single unit with a 1.5" outlet for pumpout. Connects to fresh water system, which is recommended for reduced aroma. Just a thought.

[1970Columbia34]

yeah i seen those and a good suggestion but the base is to large for the flat spot it needs to sit on.

Scott

[jbondy]

Time for a bigger boat?

[groundhog]

If u get one fabricated...
-welded polyethelene is reported to always crack at the welds eventually
-molded poly... you have to pay for a mould if u need custom
-stainless is the best if you have to get one made, but another metal object if u are concerned about lightning.

[groundhog]

I found this out after I had a poly one welded up.
Hasn't cracked yet...oye

[SVDistantStar]

What about making a tank out of epoxy and fibreglass cloth? Thats what i plan on doing for my boat since i want to mount the tank above the waterline in the locker that is behind the head. My reason for this is to have the shortest possible hose runs. I can give up the space in that locker since i dont use it.

[groundhog]

Oh yeah. I forgot about that material.
People have commonly used that too.
Not sure of the pitfalls with that (smell comes thru sooner?). Maybe the best compromise.
gh