Myson compact cp53

[Diamonds16]

Hello

Just a quick question, I have the above pump for my heating and hot water, when the water and central heating are on together the radiators dont heat up as quick, I'm guessing this is normal as the pump is distributing the water to the cylinder and the rads? when they are on seperately then its all a bit quicker, also the numbers 1 2 3 on the side of the pump, what is that all about? at the moment its on 3, I'm with the british gas homecare so before I waste my time calling them out for something that might not be broken I thought I would ask.

Also are newer pumps faster? could be worth upgrading perhaps anyway?

Many thanks

 

[kevplumb]

the numbers are the speed settings

 

[Diamonds16]

I guess 3 being the fastest? on another note, some of my copper pipes have a greeny blue stuff on them what is that?

 

[kevplumb]

residue of copper worm

it eats into the pipes

usually caused be damp or some lazy git not cleaning flux off

 

[Diamonds16]

oh nice anything I can do or just leave it?

 

[kevplumb]

ask the missus for a green scouring pad and some water

then dry it afterwards (the pipe that is )

 

[Agile]

Its likely that your cylinder is not balanced with the heating.

Not many installers even bother to fit the lockshield to the heating coil which is required to adjust it.

Follow the pipework close to the cylinder and see if there is a valve, maybe with red wheel handle, on the pipework. If so see if its fully open.

Tony

 

[Diamonds16]

just ran up and had a look and tried to turn the red wheel next to the cylinder, its fully open, the more I look at the pump the more it looks like something from 1920 but its doesn't make any strange noises (touch wood) and clearly it pumps the water round to all the rads as they are all hot (again touch wood) so maybe I'm just looking for faults that aren't there?! However the valve above it has what looks like a dark sticky substance around the joint but I'll ignore that till it starts to leak

 

[kevplumb]

just ran up and had a look and tried to turn the red wheel next to the cylinder, its fully open

it shouldn't be close it and open about 2 turns

 

[Diamonds16]

interesting, ok done

 

[kevplumb]

interesting, ok done

now nip the nut on the spindle up about 1/4 turn to stop the drip

 

[Boilerman2]

He's now probably turned the Cold feed down to a Dribble at the Taps look out for his nex new post

 

[Agile]

This valve, which pipe is it on?

If the cold feed to the bottom of the cylinder then leave it alone.

If its on the heating coil and while heating the cylinder the pipe is warm then close it and open it just one and a half turns and see what effect that has on heating rads when CH and HW are both on.

Tony