Flojet pump makes the odd grunt at night… (1 Viewer)

Pusscat

Free Member
Jun 16, 2019
295
751
Devon UK
Funster No
61,683
MH
Swift Rio 320
Exp
Since 2015
i Can’t find any leaks as yet but at night I get the water pump kick in for maybe one or two grunts, maybe up to twice a night. The pump is under the bed and right under my head so it usually wakes me up.

It’s a fairly new pump and I just swapped out the old non-working one with this.

Any suggestions as to what look for / any adjustments I need to make?
cheers!
 
Oct 14, 2007
4,038
6,363
Rochester
Funster No
619
MH
Auto-Trail Mohawk
Exp
17 fun filled years
My Surflo does it now and then. I always turn the pump off at night so not a prob.
 
Dec 2, 2019
4,175
9,373
South Lincolnshire
Funster No
67,140
MH
Rapido 7065+
Exp
Broken most bits now
It may be just the hot water cooling in a pipe with a bit of trapped air causing a slight reduction in water pressure which the pump has to compensate for. May be worth running some cold through the pipes before you go to bed or possibly try fitting an expansion tank in the line.
 
Nov 13, 2011
1,491
3,582
Lincolnshire
Funster No
18,889
MH
PVC
Exp
30 years
Most probably a small leak somewhere. Could be a dripping tap, Truma valve or drain valve. Could also be pressure getting back past pump seals, new pumps have been known to have contaminated particles.

Geoff
 
Jun 29, 2015
3,516
58,399
Southampton
Funster No
36,999
MH
caravan (for now)
Exp
on and off since 1984
I had this for months it kept getting worse them one day I noticed water dripping underneath the van, it was a faulty fitting at floor level that I hadn't noticed was leaking.

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May 7, 2016
7,372
11,982
West Sussex
Funster No
42,951
MH
Malibu Van 640 LE K
Exp
Since 2003
Not unusual. I put it down to contraction and turn the pump off at night.
 

Bazzagas

LIFE MEMBER
Mar 11, 2022
213
140
Newcastle upon Tyne, UK
Funster No
87,362
MH
Fiat ducato bessacar
Hi people...my flo jet R3426 has become very noisy....it has a bad rattle as though bearings or something is loose/worn...also when it is turned off it pulses,just once and then a few minutes later it does it again...I can't see any leaks..it pulses all night so I turn it off...
Can I take it apart and maybe clean or grease it , and is it easy to do...or should I just replace it...the model is R3426 and I can't find one, just a 3526...I'm assuming that's an upgraded model...

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