[davids3511]

I have a Shurflo 100psi and the sound it makes has changed slightly today.

There is a little bit more of a rattle or vibration to it today, should I be ordering its replacement yet?

[East coast window cleaning Services]

Sounds like the diaphram in side mate About a Benny at most places. Thats how mine went.

[windywashers]

you can get new diaphram for 25 quid, could take it apart and have a look, really easy just take off 3 screws,
williamsonpumps.co.uk

[trevor perry]

if it has a little pre filter before the pump this may have become sightly blocked try removing it and giving it a good wash it might be just the pump struggling to pull the water through.

[davids3511]

you can get new diaphram for 25 quid, could take it apart and have a look, really easy just take off 3 screws,
williamsonpumps.co.uk

I wouldn't know what I was looking at, what should I be looking for?

[East coast window cleaning Services]

Theres 3 rubbers on the diaphram they should be flush if ones slightly raised push it back in. But will prop happen again again.

[ftp]

Could just be air, give the feed pipe to pump a shake whilst it's pumping and see if the sound varies.

[Robin Ray]

If you dont have a pre filter the pump may be full of bits of plastic from where the lid an outlet were cut in the tank. Try taking the end of the pump off and having a look.

Worth a try.

[davids3511]

Cheers guys, will have a look tomorrow.

[WISEOWL]

Check the fittings that secure the pump to your van.

Does the sound get louder the higher you turn up the pump?