Replace CH Pump today.. What tools do I need ?

[freestyle]

Dear All.

After almosy dying of hyper-thermia last night I decided I cannot wait any longer to get my pump replaced.

I noticed its got a stop either side, so I should be able to replace the pump without draining the system.

Looking through my tool kit, I don't have anything that will fit around the end of the pump. They are massive !!

What do other use. Please post links to picture if you can.....


Also can I take it that the only difference between a 50 and 60 pump is the diameter of the connections ?

 

[ArtfulBodger]

Get a pair of water pump pliers, any DIY place will have them. The price difference refers to the head of water that the pump can generate, just replace like with like.

Make sure you put the pump back on the the right direction denoted by the arrow, also make sure you get the old washers off the pump valves and remember to put the new ones on - they come in a little plastic bag.

 

[freestyle]

Thanks for the fast reply.

Just got back with a pair of water plump pliers.

I could not identify which pump I already have, because it faces away and I can't get a mirror in.... Whoever fitted it honestly !!!

The pump is a COMET 2 130 No mention of head...

I have picked up a pump from my local plumber merchant, he said the one he gave me should be ok.


Useful tip I was given,

Plumber1: What type of isolation valve do you have at the moment either side of the pump

ME: Umm, the type that you use a screwdriver for.

Plumber1: I think you should replace those, as they never work. SHOUT OUT THE BACK what do you think ?

Plumber2: Yeah, I've always had to drain the system down on those ones.

ME: Thanks, I'll take 2 isolation valves then at £2 each


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[croydoncorgi]

Disagree about the washers. OK - you get 2 free with the pump isolators. But they're crappy fibre and you get better rubber ones free with a decent pump (ie Grundfos).

 

[wilhelm]

nowt wrong with fibre. in fact thats probably why they are manufactured.

 

[croydoncorgi]

Fibre washers on pump flanges are too thin to absorb any movement in the pipes and usually result in the nuts being done up too tight. As a result removing the pump next time turns into a nightmare! Rubber washers absorb movement and vibration and are usually easy to undo.

 

[freestyle]

Thanks.. lucky enough the pump came with rubber ones, so I discarded the fibre ones

 

[kevplumb]

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