[Smurf]

First of all I would check for any blockages like inline strainer, brush jets etc and for any kinked or collapse hoses including inside the reel itself.  Have you tried running the pump without the hose reel connected. If so what happens then?

Also if you have any hoselock stop type connectors fitted check that they are on fully and not worn/broke. If need be as a test swap them over with normal hoselock type connectors and see what happens then.

[jk999]

It's on a trolly the only thing I haven't checked is the pressure switch  and the hose fitting in use rectus 21 fitting s I have just bought some of those brass ones 26 fitting s I think

[Dave Willis]

Could just be an electrical connector, try renewing them but clean the wires up first or trim them fresh. Clean the battery terminals with a bit of wire wool.

[jk999]

Checked everything dave 

[martinw]

By any chance do you have strainer with one way valve fitted in your trolley?  if so it could be sticky valve.

[Matt.]

I will pop pic up tomora I have 2 pumps in the van which I have take pressure switch off one and put it on other one. Was showing a friend last week hence old pumps in the van.

If the pump is trying to pump an all is well from pump to rectus fitting it may be the connector gone.

I have had pumps that pump are fine wen u at ground level but once the pole goes up the pressure has dropped that's why I have changed them in the past

[jk999]

Took the strainer of still doing it

[M & C Window Cleaning]

When you put your finger over the end of the intake hose, can you feel the suction? The reason I ask is that
the only time my pump ever makes the sound I think you're describing is when the intake side is blocked

[jk999]

Will try that tomorrow ok 👍

[jk999]

Bit of a daft question can the two wires just be taken of the pressure  switch and attached  to  the  micro switch. And Matt are you still  gonna pop a pic on here cheers Kev

[johnny bravo]

recheck all connetions from controller to pump.,  one of my controllers was playing up the other day,  green light flashing , then just going off,   rechecked all wire connections,  double checked fuse,     came straight on,       may be ontroller,  have you a spare to try.

[jk999]

It's wired straight to an on off switch Johnny no controller

[andyM]

Bit of a daft question can the two wires just be taken of the pressure  switch and attached  to  the  micro switch. And Matt are you still  gonna pop a pic on here cheers Kev

Bit confused as to what you mean?
The 2 wires are attached to the pump, they are just connected to the pressure switch by spade connectors.
Have yo got the Maplin micro switch and the new correct size spade connectors ready to go?

[jk999]

Going this afternoon. There are two red wires connected to the pressure  switch can those be connected straight to  micro switch without taking  the old one off

[andyM]

Going this afternoon. There are two red wires connected to the pressure  switch can those be connected straight to  micro switch without taking  the old one off

The spades on the Maplin switch are a different size from the original shurflo.
I snipped the original plastic connectors off of the wires and crimped on the correct size spade connectors.
When you are in Maplin's buying the new switch make sure you buy some spade connectors to fit if you don't have an assortment already.

[jk999]

Ok will do. Matt was supposed to be putting some pics on of the micro switch connected up in think

[jk999]

Well I have bought the suggested micro switches from maplins how do i connect it and to which terminal s do i use cheers  Kev

[andyM]

There will be 3 spades on the Maplins microswitch.
Just ignore the middle one and connect the 2 wires to the top and bottom spades.
I marked the bottom wire with some tape before removing the old pressure switch and then connected to the new one in the same order. 

[M & C Window Cleaning]

Had some time to potter so took apart my spare Sureflo. Not done this before but it is straightforward. Word of advise: Do this over a decent surface where you cannot lose small parts.

When you have removed the three screws that holds the PS on you will have this





Gently prise the two parts apart and separate taking care not to lose the small parts







Carefully remove the micro switch





When reassembled it goes back into the pump body like this



I found this part easiest to assemble as follows









Then screw the assembled PS back onto the pump body taking care to line up the two small lugs

Hope this helps 

[jk999]

Luvely  cheers  buddy if it works it will save loads of money