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Hi all, I've got the above pump. I took the head off to clean out the crap in the impeller and put it back together again, I've had sentinel x400 running for almost a month now. My 11 rads dont heat up when all are turned on, but if i isolate downstairs then they work, same for if upstairs is...

Decent advice will do that in future as much easier access!

Morning, Thanks to those who have helped me so far as my mission to show the missus I'm not completely useless continues. I've got a massive radiator on the end of my open vented system downstairs. It's a double thick one, over 2m long but only about 50cm tall. It's a nightmare to heat up...

I drained down completely first, then chucked sentinel in, then turned mains water back on and then started filling up the CH system. My worry was that the x400 might sit there at the bottom of the tank not mixing in with the new water as it came in. I wondered if instead I should have done a...

Yes I do in upstairs bathroom.

Thanks, I've cleaned up the F and E. Then dumped the bottle of Sentinel in, then turned the mains water back on and it filled up. I've read elsewhere that I should have poured it in gradually as the water fills the F and E. Does that matter? Cheers

It was looking a bit murky and the last rad won't get warm downstairs, thought I would give it a try

Hello, Im going to drain down and put some x400 in the F and E tank in loft. Should I fully open all lockshield valves up to enable good flow throw the system? Or should I keep them balanced? In hoping to clean out a fair bit of sludge as the pump is struggling to reach the last rad in system...

Thanks, I was indeed going by what the counter lad said Do you reckon I should do 3 turns of PTFE on the olives to seal it up?

Apologies it's a mid position valve

Cheers!

Hi all, I'm going to replace my 3 way diverter valve as I did the head only and it's still not working properly. I'm hoping it will be a straight swapover. Can you please advise if I should sand down the pipes and use ptfe tape when doing back up? What method do you use? Cheers, Rusty

Thanks for your reply. Not that I can see

Hi all, I'm puzzled by my CH and HW system. I appreciate any help you could give me. I've got a gravity fed system with Vaillant Ecofit Pure 415 on heat only, a grundfos ups2 15-50/60, Fernox TF1 omega for crap catching and a Honeywell 3 port valve. British Gas charged the previous owners a...