Jabsco toilet not flushing

[RichardS]

My experience in the Med’ has been similar to yours Richard. However in the UK, where tidal streams can carry weed and other debris past the inlet, I’ve had the misfortune to suck up weed, which has got entangled with the spring on the inlet valve and prevented it from fully closing. No option then but to open the bonnet and have a clear out. It’s happened several times too.
Mike.

Do you not have a strainer/filter on the inlet side, Mike? I use my filter to hold the toilet block so it not only stops any weed getting through but it also kills all the smells when the loo is left unused.

Richard

 

[RichardS]

If you’re in the situation where you’ve snapped the post, you may be able to drill through the post and then use a long nut and bolt until you can get a new pump. Don’t ask.....

Doesn't that place either the head of the bolt or nut through the bottom face of the container such that it will continuously drip?

Richard

 

[mikegunn]

Do you not have a strainer/filter on the inlet side, Mike? I use my filter to hold the toilet block so it not only stops any weed getting through but it also kills all the smells when the loo is left unused.

Richard

No, I don’t. Good idea! Another one for the “to do” list. I like the idea of using the filter as a repository for a toilet block too. Thanks for that.
Mike.

 

[RichardS]

No, I don’t. Good idea! Another one for the “to do” list. I like the idea of using the filter as a repository for a toilet block too. Thanks for that.
Mike.

This is the one I have: Jabsco 46400-0002 - Fresh Water Pump Inlet Strainer - Hose / Pressurised Fresh Water Pump Accessories / Pressurised Fresh Water Pumps / Pumps / Marine / Xylem JabscoShop - Jabsco & Rule Pumps and more - from the experts designed by Jabsco.

Richard

 

[Beneteau381]

13 yrs with my jabsco on this boat and no problems. Squeaks at me occasionally so I give it a drink of vegetable cooking oil (eggcup full) and it shuts up again. End of the season I strip and clean and grease and rebuild. Takes an hour.
Dare I use the bog tomorrow after saying this?

I have found that silicone grease on the piston every couple of months does the biz. The joker valve is a joke and wont seal properly but the flap valve under the twist and lock does if replaced every year ish. I agree, an hour, strip clean and grease and leave the valves on the top alone! I dont have an issue with mine!

 

[duncan99210]

Doesn't that place either the head of the bolt or nut through the bottom face of the container such that it will continuously drip?

Richard

It was some time ago now but my first attempted bodge was to glue the stub in place. That didn’t work, so IIRC I drilled through the stub, glued it into place and then used a nut and bolt to hold things together. The glue (epoxy I think) wasn’t strong enough to hold the stub itself but was OK at keeping it all watertight. As I said, it was a bodge and was only in place long enough to source a new pump.

 

[TotOfRumTina]

I fitted the full pump assembly less than a week ago to replace the electric conversion which was exceptionally noisey and was in need of an service kit . Not exactly the most pleasant job but hopefully this will now last a few years .
Thanks to Cactusnav for a good price and free delivery.
Jabsco Twist n Lock Pump Assembly (29040-3000)
.

Twist n lock is what we just put on ours yippee it now flushes sea water all by itself without having to keep putting bucket full down. We tried the filter thingy 1st but didn't help. BUT it keeps leaking from the big green pipe on the bottom (not mine the bottom of the toilet) which has a jubilee clip on but have tightened it up as much as possible but the green pipe has metal in it how is that ever going to grip? It is still leaking slightly ???

 

[RichardS]

Twist n lock is what we just put on ours yippee it now flushes sea water all by itself without having to keep putting bucket full down. We tried the filter thingy 1st but didn't help. BUT it keeps leaking from the big green pipe on the bottom (not mine the bottom of the toilet) which has a jubilee clip on but have tightened it up as much as possible but the green pipe has metal in it how is that ever going to grip? It is still leaking slightly ???

I'm not sure what the "big green pipe" is but the fact is that the spiral hoses do harden with age and the PVC ones are prone to developing tiny splits near the clip which can be very difficult to see. You can tighten the clip as much as you like but it's more likely to make the leak worse rather than better. The only solution is a new hose, ideally the more flexible butyl rubber type rather than PVC.

Richard

 

[emandvee44]

On the subject of hoses, we changed ours to this brand. Best thing about it apart from the odor barrier is that it is very easy to fit onto the spigots.

Sanitation Hose with Barrier Layer buy now | SVB

M.

 

[johnalison]

13 yrs with my jabsco on this boat and no problems. Squeaks at me occasionally so I give it a drink of vegetable cooking oil (eggcup full) and it shuts up again. End of the season I strip and clean and grease and rebuild. Takes an hour.
Dare I use the bog tomorrow after saying this?

More or less my experience too, with 20 yrs in this boat and fourteen in the last. Apart from when something goes wrong, like the joker valve failing, I try to avoid servicing other than a few drops of vegetable oil in the bowl. This is not from laziness but because it is unnecessary and is more likely to lead to leaks. Screwing into plastic is like screwing into anything in that you need to have the sensitivity to know when you have done enough. It is hard to misuse such a simple device but apparently some people manage this.

 

[TotOfRumTina]

I'm not sure what the "big green pipe" is but the fact is that the spiral hoses do harden with age and the PVC ones are prone to developing tiny splits near the clip which can be very difficult to see. You can tighten the clip as much as you like but it's more likely to make the leak worse rather than better. The only solution is a new hose, ideally the more flexible butyl rubber type rather than PVC.

Richard

Richard that looks an absolute pain to change most of it you can't even see it Goe under bits of floor you can't go into. I suppose in the future we were thinking of having a holding tank for loo so that would be a good time for "Mr Plumber" to change the pipe if we can cope with a little leak till then

 

[Another One]

I wish my first post could be about something other than a toilet problem.

Whilst out on the Medway on Wednesday the Jabsco manual toilet stopped drawing in seawater and hence stopped flushing. It had worked fine up until then. So I looked online and found a Jabsco video, which said that I needed to replace the gasket. I installed a new gasket and spring today but still no flush water and no pressure on the upstroke. I've checked back down the pipes, disconnected the hose from the pump to try to induce a siphon; disconnected the hose from the seacock and then turned on the seacock to confirm that water flows - put it all back together but still no seawater coming to the pump. What else can I try?

Thank you all for your helpful advice. I only wish I had asked here before relying on Jabsco, who advised via a YouTube video that I needed to replace the top gasket. In fact all it needed was some vaseline smeared on the piston O-ring and now works a treat. I'll follow the other advice found here and lube regularly with cooking oil in the toilet pan.

That's 7 quid and three hours of my life I'm never getting back!

Thank you forum members.