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Post by JohnV on Feb 22, 2020 21:17:23 GMT
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Post by JohnV on Feb 22, 2020 21:30:41 GMT
Flojet "Quiet Quad" MOD R4305-500 Any idea why a pump would just stop with no warning? Has worked fine for 6.5 years. We have been away 7 weeks. What could have happened? Hasn't frozen - hasn't been cold enough in Berkshire has it? it possibly is just seized and a strip and grease might solve it .... but pumps don;t last forever and yours has had a fairly decent life (I know it doesn't work all the time but that is not always good) might just be some damp has caused the shaft to seize, after all with a pump and pipes there is always the chance of moisture I've never heard any real horror stories about Flo jet (I use a Jabsco Parmax) If you do change make/type make sure you get one with similar pressure switch settings I notice the model in the link I gave is -A after the number so it might be uprated (and it gives the fuse size as 10A)
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Post by JohnV on Feb 22, 2020 21:35:41 GMT
just seen the photo..... the ----500A model is slightly higher pressure 25 PSI start 35 PSI stop
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Post by Mr Stabby on Feb 22, 2020 21:37:02 GMT
Pumps are consumable items and if you've had 6+ years out of it then it's time to get a new one.
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Post by JohnV on Feb 22, 2020 21:57:33 GMT
www.jabscoshop.com/marine/pumps/pressurised-fresh-water-pumps/31295-0092-par-max-19-pressure-controlled-pump.htmthis one is closer to the pressure ratings of yours but has a lower flow rate (but it's cheaper ) when researching suppliers locally don't forget caravan/RV equipment suppliers but watch the pressures there are umpteen models of both Jabsco and Flo Jet they seem to change them every couple of years, never found flow rate makes a great deal of difference but some of them pressure up to 40 + psi ..... which might give your pipes a bit of a work out
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Post by lollygagger on Feb 23, 2020 8:10:27 GMT
It's broken. You have nothing to loose by taking it apart.
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Post by Gone on Feb 23, 2020 8:39:22 GMT
I would measure the current using a clamp meter to confirm it is over current rather than a knackered breaker. Does the breaker open immediately or run for a few seconds before opening? If it runs for a few seconds it (and the breaker is not knackered) then check the voltage AT the pump, as a poor connection somewhere in the circuit will drop the voltage at the pump and so increase the current drawn.
If the breaker opens quickly and there is no sound of the pump running, then the pump motor is probably unable to spin and the stall current is causing the breaker to overload, time for pump replacement. If you do manage to free up the old pump (which is probably not worth the effort) then you will have a spare.
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Post by Deleted on Feb 23, 2020 8:48:49 GMT
It needs an oil change.
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Post by Deleted on Feb 23, 2020 9:45:23 GMT
It needs is an oil change. Ha ha ha ha Made me laugh a lot. I've given up with water pumps, I think they're simply disposable these days. I've tried replacing seals and impellers, which isn't difficult, but never totally successful. Having re fitted a 'reconditioned' pump they have always very quickly leaked and not proved worth the cost/effort. Rog
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Post by TonyDunkley on Feb 23, 2020 10:34:40 GMT
I forget if I have asked the previous owner of our boat if he knows how old this water pump is. At the same time we might as well have a valve put onto the water pipe from the water tank to the pump, so that changing a pump will be easier. Have you taken the end cap off the motor to have a butcher's at the armature and brushes, and see if there's any obvious shorting and if the motor can be turned by the comm. with your fingers?
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Post by Deleted on Feb 23, 2020 14:05:42 GMT
Go and get the mooring pin hammer. 4lb is best. Warm hammer over cooker ring for 2 minutes 30 seconds. Apply an inch long piece of sticky tape to the pump motor casing. Have a cup of tea. Apply a matching piece of sticky tape to the face of the hammer. Wear eye protection.
Cover the pump motor casing with a warm damp towel (38 degrees about body temperature). Strike the motor body really hard with the hammer. As hard as you can safety hit it.
This will save all the fannying about working out what is wrong with it as it will now be broken (magnets cracked).
Therefore you can get a replacement pump.
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Post by Mr Stabby on Feb 23, 2020 16:05:39 GMT
Possibly the reason he had this "new" one knocking about was that it had previously been removed from a boat because it was doing exactly the same thing. Have you got a multimeter?
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Post by Deleted on Feb 23, 2020 16:12:50 GMT
Have you taken the end cap off the motor to have a butcher's at the armature and brushes, and see if there's any obvious shorting and if the motor can be turned by the comm. with your fingers?Β Β No... not yet... currently we are in our local pub, The Swan, on London Road. It is apparently the dive for the sinkhole council estate but we popped in to look at Christmas and there were families eating here so it can't be too bad. Pirkko says her Italian Chicken is good, and my scampi & mushy peas is OK. Friendly bar staff. The marina owner, Derek, had an old spare similar pump, Flojet. He said Flojet are cheap crap. Gazza-of-the-Nene told us Flojet is a good make... Derek came along and fitted the old-new one and it works! He said it may leak, and if it does, they may have some new Jabscos to replace it... otherwise say a tenner later this week. He has given me instructions on how to set the accumulator pressure properly. The switch seems to work - turn tap on, pump starts, tap off pump stops. Pipe connections simply clip-on affairs, fitted in seconds. I will open the old pump probably this afternoon/evening. For Scientific Investigation / autopsy. Main task is to get the boat ready for the BSS man tomorrow, put a new gas bottle on, vacuum the gas locker, clean the engine room... that's about it. No reason why we shouldn't 'pass'. Β Won't be boating this week - I saw the Kennet raging like mad, and the flow at the stone bridge in town is like a rocket. Worse than at Christmas. But we have walking & cycling trips in mind for this week, and getting photos to make another YouTube video. Perhaps a train trip to Bradford-on-Avon? ps - Derek said Jabsco are "the best". No he didn't, he said Jabsco are good π
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Post by Mr Stabby on Feb 23, 2020 18:16:19 GMT
I reckon Derek thought "This twat looks thick enough to pay Β£10 for that scrap pump I've got out the back".
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Post by peterboat on Feb 23, 2020 18:52:54 GMT
I have a 240 volt pump on the boat its a high flow pump designed for moving lots of water around, it replaced the micky mouse shower pump that was used by the boat maker, for me it fits with the do it right do it once
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