Recent content by Rusty89

What does the manual vent do, and when would I open it? Is it the same thing as I already have in my airing cupboard on the stalk? I will also buy a 15mm gate valve. Just going to Toolstation now. Thank you so much.

@Johntheo5 I like what you're saying but I'm a bit stupid . Now this is my to-do list - 1) Remove 15mm cold feed pipe from my F+E Tank, cut the other end 15mm pipe in my airing cupboard near where it joins the main circuit. Put a compression stop on it. 2) Make hole bigger in F+E tank and use...

Close up

15mm cold feed sir

Here's the loft view. I don't get why it's pumping over at all (lid off header as im replacing float valve)

Regarding my pic in post 10 - Could I put a 22mm Equal tee in on the horizontal line, just above where i've marked it, then run 22mm pipe back to header tank. Then cut the 15mm pipe downstairs in the airing cupboard and put a stop end on it? I'm confusing myself :LOL:

Would it work if I joined them here? Header tank on right off picture, it's raised quite high with the overflow pipe running along the roof and dropping down into tank

Here is an updated picture with the sections I cut out and replaced. The cold feed comes in after the vent. I'm pretty sure it goes boiler> filter (why I don't know) > vent > cold feed > loop round to pump, then diverter valve off to CH or HW. It has been overpumping the entire time, before...

Hi all, A year ago I had a broken gravity fed heating system. I was advised by the good people (@Elkato531 @Johntheo5) here to cut out a section of pipe where cold feed and vent join up in my airing cupboard and replace. I did this, and discarded the pipe which was heavily full of magnetite...

Yep it's completely cleared all the way to the pump, I'm really surprised it's going up the vent considering the suction from the pump. Could it be from air still in the system, or a bad layout? Otherwise I think the method Johntheo5 suggested is the way forward. Thanks again for you help with...

So you were absolutely right, completely choked up at the cold feed and vent area. I've now cleared it and replaced some pipe. The system is now getting nicely hot everywhere. I took the pump head off for a clean as well, and it was free of magnetite. When I put it all back on the pump was...

That bend at the bottom scares me but I'll give it a go. Annoyingly the magnet is sticking on the first bend after the mag.filter, so carp has got backt there too!

Thanks for your helpful reply. There's also some magnetism down on the ubend before the pump, so I'm going to chop that one as well! Cheers!

Hi Elkato, here is a pic of my upstairs airing cupboard. Boiler is downstairs. My magnet is sticking on the ubend before the circulating pump and all the way up the pipe before this. Is that a normal place for magnetite build up? I dont understand the direction of travel from the boiler up to...

I took the head off and cleaned out the impeller with a cable tie so should be good. Can I buy a new impeller? Worth a go. Thanks for your reply