I have a hunter 22 with a porti potti and was wondering if it was possible to replace it with a marine head with a holding tank ?????? and what size tank could I use and were to install it
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On a boat that small, stay with a self contained system
Replacing it with a marine toilet will require installing a new thru-hull for the flush water supply...at least one vented loop...the toilet will use at least 1/2 gallon/flush--compared to the cupful or 2 your portapotty uses, so you'd need at least 10 gallon tank to hold as many flushes...the tank and all the related plumbing will take up 1/3-1/2 your storage...and you'd be trading in a system that requires -0- maintenance for equipment and plumbing that require constant maintenance. If you're tired of carrying a portapotty tank off the boat to empty it, replace it with a model that's designed to be permanently installed and fitted for pumpout...and if you have enough height, one that holds 5-6 gallons--50-60 flushes...you'd need at least a 25 gallon tank to hold that many from a marine toilet. Thetford and SeaLand both have "pumpable" portapotties...Look for the "MSD" designation in the model name/number. Thetford even has an "electric" model that runs on AA batteries.
Replacing it with a marine toilet will require installing a new thru-hull for the flush water supply...at least one vented loop...the toilet will use at least 1/2 gallon/flush--compared to the cupful or 2 your portapotty uses, so you'd need at least 10 gallon tank to hold as many flushes...the tank and all the related plumbing will take up 1/3-1/2 your storage...and you'd be trading in a system that requires -0- maintenance for equipment and plumbing that require constant maintenance. If you're tired of carrying a portapotty tank off the boat to empty it, replace it with a model that's designed to be permanently installed and fitted for pumpout...and if you have enough height, one that holds 5-6 gallons--50-60 flushes...you'd need at least a 25 gallon tank to hold that many from a marine toilet. Thetford and SeaLand both have "pumpable" portapotties...Look for the "MSD" designation in the model name/number. Thetford even has an "electric" model that runs on AA batteries.
I second that.
A few years ago I replaced a 2.5 gal sealand porta-pot with the msd version of the 5 gal unit. You need a 5/8" vent fitting/hose and 1 1/2" waste fitting/hose. With a hole saw attached to a drill, "piece of cake", as long as you have the room for those. If nopump outs are available, you can also dump it like a porta-pot if your careful and don't throw away the "spare parts" that come with the unit. I have an H 26 and they make a 2.5 gal unit too. alan
A few years ago I replaced a 2.5 gal sealand porta-pot with the msd version of the 5 gal unit. You need a 5/8" vent fitting/hose and 1 1/2" waste fitting/hose. With a hole saw attached to a drill, "piece of cake", as long as you have the room for those. If nopump outs are available, you can also dump it like a porta-pot if your careful and don't throw away the "spare parts" that come with the unit. I have an H 26 and they make a 2.5 gal unit too. alan
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