Holding tank in a 36SF

[Kathy L]

I’m trying to find out what is a good size for the Kathy L, just the two of us and I found out last week, in the Florida Keys the no discharge zone goes from 3st mi to 12. Some number of years ago I built and stalled a 16 gal.
That was fine, but now retired I may have to re think. Jim R., You are the only one I can see that has a 36SF, what do you think?

 

[bostonhatteras]

Biggest you can fit, right? Isn't your main concern where you'll place it? Are you working with a vacuflush or gravity drain with necessary pitch type head? The dometic HTS-28 all in one holding tank is tough to beat. Id bet with a little creativity you could fit it under your forward sole. needs a flat and solid platform though.

 

[Avenger]

Hatteras put the holding tank behind the water tank in front of the aft engine room bulkhead on the later 36s. Unfortunately, mine is an earlier boat, so I don't have the tank or the plumbing to show you. If you want, I can take measurements next time I'm on the boat.

 

[madhatter1]

Generally if they didn’t make room to install one as an option there is no room. But there is an option. Convert the fresh water tank to a holding tank and install a new fresh water tank in a different location. That way you get a decent sized holding tank and a new clean fresh water tank.

 

[jim rosenthal]

Mine is a relatively early boat, a 1971. I don't have a holding tank, I have a LEctra-San, which might not even be legal anymore. It is located on the floor of the locker between the head and the V berth stateroom. If I had to fit a holding tank, there would be room for a larger unit in there, but I'd lose some vertical space. This isn't much help, I'm afraid.

 

[jim rosenthal]

Most of these boats had fiberglass water tanks, but not all. I recall seeing some with aluminum water tanks years ago. If you decide to do a conversion as mentioned, make sure the tank is FRP and not aluminum; I don't think you can use an aluminum tank for holding waste.

 

[Kathy L]

Jim, Kathy L is also a1971. I put a lectrasan in the same place as you did. They are still certified by USCG but you still can’t discharge in a no discharge area. Back in 1983 when I put it in I also built a fiberglass 40x12x8 holding tank which I slid it in the forward bilge where the shower shower sump was. Then forwarded of that there is, a little, space to fit an Atwood 4141 sump that the shower and the forward AC drain into. Things are tight, but it works.
Thanks for your comments.
John