I'm trying to eliminate holding tank
odors, and have two questions:
First, I'm looking at a Groco Sweet Tank system and just can't bring myself to spend $200 on an air pump
. I was planning on just tapping a port for an NPT fitting directly into my tank and then attaching a low draw air pump
myself (maybe $10). Do you guys have any thoughts on why that might be inadequate? Looking at the specs of the Sweet Tank system, it looks like it's a continuously running pump and nothing more... I'm pretty sure I can make this myself, but I welcome anyone who'd like to talk me out of it. Also if anyone actually has one and can confirm that there's no additional functionality, that'd be helpful.
Second, I'm considering just replacing the tank. It's 26 years old, and I think it might simply be permeated by odor
(I've already replaced all the tubing and fittings and there's a lingering smell under the v-berth where the tank is - not the sour hose smell, but just kind of a low level yuck - wafts up from time to time. It's only under the v-berth by the tank - the head
and the rest of the boat
smells like a sweet meadow after a springtime rain... that or diesel
... anyhow...). However, I've always heard it's all but impossible for the tank itself to smell. It's plastic of some sort... Anyhow, have you guys ever heard of the tank smelling? Does the wet rag trick work
on the tank too?
I guess I also have secret question number three - part of the motivation for replacing the tank is to get something smaller - we currently have a 40 gal tank, which a) takes up a ton of space and b) invites LOOOONG periods between pump outs. Any recommendation on an optimal tank size for two people?
(insert man on toilet emoticon here)