ASHP low pressure help pls

[JohnMo]

On 17/01/2026 at 13:59, sharpener said:

In slow time it would be better to bin it and get a Magnaclean or Adey HP filter fitted indoors, they have a much bigger element like an enormous kettle fur collector and a magnet for collecting magnetite particles shed by the radiators - which you should not be gettting if there is adequate inhibitor in the system

I would be very careful deleting, as your warranty will very likely be void. Almost every manufacturer states you must have a strainer of a given mesh size. So add the filter to catch all the rubbish, but keep the strainer there just in case and keeps your ASHP warranty.

[Nickfromwales]

15 hours ago, JohnMo said:

I would be very careful deleting, as your warranty will very likely be void. Almost every manufacturer states you must have a strainer of a given mesh size. So add the filter to catch all the rubbish, but keep the strainer there just in case and keeps your ASHP warranty.

Prob best to add that the mag filter should be upstream of the strainer, to capture as much crud as possible before it blocks the much lower capacity strainer ‘sieve’.

 

Also ask (whoever) to fit a mag filter which has a drain point at the bottom (a-la the TF1); it was annoying as feck to have to siphon out the water in an Adey Magnaclean to dump in some inhibitor this week.

 

 

The client had a new WB boiler fitted, so the one above was requisite for warranty. Note that is an Adey one (mass produced for WB most prob) but has a vent on top and a drain off at the bottom. 
 

The Magnaclean had just the vent at the top which was quite annoying. More annoying was the valves on the Magnaclean wept slightly when in the off position. 
 

@canalsiderenovation, I’d go for a TF1, but the biggest plus here is when the system needs dosing again.
 

You just turn off the valves either side of the filter, put a bowl under the filter and open the drain to empty out. You remove the magnetic cartridge and clean it, then put it back in, remembering to check you closed the drain off properly (1/4 turn like the filling loop  ). 
 

You can then self administer the additional glycol by pouring it into the empty filter vessel.

 

Close the lid, open the two isolators back up, vent the filter with a radiator key, and get your arses to the pub. No plumber needed.

 

When the dust settles, give me a nudge here and I’ll add more details of a few things you can do to make self checking and self maintenance a breeze.

In the meantime, shake the shit out of their quote, and ask for them to resolve the noise issue before a single penny gets even considered to be heading to them.

 

Personally, I’d tell them to FO based on time lost, inconvenience based on their incompetency, and the fact they’ve cured one issue and caused another.

 

I stand on my previous statements……these lot wouldn’t have stepped back over my threshold. Stunk of “useless tossers” from day 1, sorry .

 

 

Here you go. 
 

https://fernox.com/product/tf1-sigma-hp-filter/

[canalsiderenovation]

39 minutes ago, Nickfromwales said:

When the dust settles, give me a nudge here and I’ll add more details of a few things you can do to make self checking and self maintenance a breeze.

 

Thank you @Nickfromwales once this is sorted we will come back and ask for things we can do and hopefully get someone out to quote for the things you recommend.

 

41 minutes ago, Nickfromwales said:

In the meantime, shake the shit out of their quote, and ask for them to resolve the noise issue before a single penny gets even considered to be heading to them.

 

Personally, I’d tell them to FO based on time lost, inconvenience based on their incompetency, and the fact they’ve cured one issue and caused another.

 

So as it stands it looks like they are wanting to keep our almost £200 we have paid and want another £80 odd. I am going to ask them for a breakdown of what they are charging for and frankly tell them they can sod off with the £80 odd. Looks like by all accounts we aren't going to get our almost £200 back. I am going to make it clear to them that hell would freeze over before we have them to do any other work and as a minimum they should fix the issue they have caused.

 

 

[-rick-]

1 minute ago, canalsiderenovation said:

So as it stands it looks like they are wanting to keep our almost £200 we have paid and want another £80 odd. I am going to ask them for a breakdown of what they are charging for and frankly tell them they can sod off with the £80 odd. Looks like by all accounts we aren't going to get our almost £200 back. I am going to make it clear to them that hell would freeze over before we have them to do any other work and as a minimum they should fix the issue they have caused.

 

If they'd done the job properly on the service, the other visits and charges wouldn't have been necessary so make that argument and that you shouldn't be paying for their incompetence. The issues caused significant distress and threatened to/did impact your business (Airbnb) so you could suggest you may be asking them for compensation.

[Nickfromwales]

6 minutes ago, -rick- said:

The issues caused significant distress and threatened to/did impact your business (Airbnb) so you could suggest you may be asking them for compensation.

Yup. +1 to this. Excellent leverage!