After many pumping strokes with our current head, we begin to get a good flow of water/flushing capability. If we leave the bowl filled with water, there is not a problem, it will not lose its prime. If it is close to empty, however, we are pumping quite a bit to obtain good water. I have heard of putting in a loop at the base of the bowl with the intake hose. I assume this is to maintain more water, much like keeping the bowl filled with water. I suppose then, we wouldn't necessarily need a loop, but an excess of hose coiled or snaked around somewhere beneath the water line close to the head? Do some heads omit the vented loop above the waterline, and route the hose directly to the head? It seems some heads advertise just pushing in on a lever and water comes in to fill the bowl? Would that be a power vs. sailboat situation? If you could shed some light onto this I'd appreciate it. Thank you.
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For starters....
Manual marine toilets aren't designed to hold water...they're designed to pull flush water in and push bowl contents out with each pump stroke. You don't say what the make/model of your toilet is, or how old it is...but a "p-trap" in the intake line won't solve your problem. It could sink your boat. I suspect your toilet is hard to prime because it's long overdue for a rebuild kit (replace all the rubber valves, gaskets etc). Or, the vented loop in the intake is in the wrong place--in the intake line between the thru-hull and the pump, instead of where it belongs--between the pump and the bowl. Or both. "Do some heads omit the vented loop above the waterline, and route the hose directly to the head?" Only if the toilet is well above the waterline. If the toilet is at or below the waterline, the vented loop is a necessity. "It seems some heads advertise just pushing in on a lever and water comes in to fill the bowl? Would that be a power vs. sailboat situation?" Nope...those toilets--the Wilcox Skipper, the Groco Model K, and the Blake (made in the UK--are just very expensive, with price tags of $800-$2500. What's the make/model/age of your toilet? Where is the intake vented loop located? And btw...you might want to check out the link below
Manual marine toilets aren't designed to hold water...they're designed to pull flush water in and push bowl contents out with each pump stroke. You don't say what the make/model of your toilet is, or how old it is...but a "p-trap" in the intake line won't solve your problem. It could sink your boat. I suspect your toilet is hard to prime because it's long overdue for a rebuild kit (replace all the rubber valves, gaskets etc). Or, the vented loop in the intake is in the wrong place--in the intake line between the thru-hull and the pump, instead of where it belongs--between the pump and the bowl. Or both. "Do some heads omit the vented loop above the waterline, and route the hose directly to the head?" Only if the toilet is well above the waterline. If the toilet is at or below the waterline, the vented loop is a necessity. "It seems some heads advertise just pushing in on a lever and water comes in to fill the bowl? Would that be a power vs. sailboat situation?" Nope...those toilets--the Wilcox Skipper, the Groco Model K, and the Blake (made in the UK--are just very expensive, with price tags of $800-$2500. What's the make/model/age of your toilet? Where is the intake vented loop located? And btw...you might want to check out the link below
PRIME 2
We have a 2004 36' and after many pumping strokes with our current head, we begin to get a good flow of water/flushing capability. However, once you stop the rpime is gone. This just began. Before the first pump deliver enough water to wet the bowl. I will be interested in what Peggy has to say as well.
We have a 2004 36' and after many pumping strokes with our current head, we begin to get a good flow of water/flushing capability. However, once you stop the rpime is gone. This just began. Before the first pump deliver enough water to wet the bowl. I will be interested in what Peggy has to say as well.
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