dpmiller

you say that, but is it true?

Good Q. The inlet pipe is plumbed right to the bottom on these and there's only a small overflow hole toward the top of the sampling pot. We had an issue with the pump last year which had it out of action for a week or so. At no stage, running or not, have I ever seen any floating scum layer. I've been advised by the reps of two different distributors that even a couple of weeks without power won't affect the output quality of a mature plant noticeably

you'd need to have a problem for quite a long time as there's 400mm or more between the normal level it pumps out down to, and the "overflow" height.

Correct. It's an SBR- Sequencing Batch Reactor. It goes through a run of aeration and settling cycles before a final settle and pump out.

in our case the Solido airlifts well above the outlet, into the sampling pot, and this then overflows to the outlet

some TPs have a sampling point built in

Hello. near neighbour...

exactly what kind of breaker tripped in the CU?, was it an MCB? RCBO?

what is the actual thermal quality of the TLA and does it need to be topped with a screed anyway?

some systems just display the "programmed" fan speed whereas some can I believe alter the fan speed to keep airflow constant as filter restriction rises. Seing a marked change in fan speed would hint at the filter being blocked in this case.

is there any pressure-drop or flow monitoring on your unit? Is fan speed under closed-loop cantrol?

Yes, an extractor to the outside. It's through a gravity flap which has a rubber seal on and is pretty airtight, certainly not entertaining any backflow. It will very rarely (depending on wind direction) flap open briefly on very heavy gusts and so I've considered going to a motorised damper, but it's just not bad enough to really worry about...

you're not helping us help you here...

Bog-standard (but powerful) extractor, and MVHR extract point over the sink but near the cooker. Normal steamy cooking is dealt with just fine by the MVHR, but on the occasions that I want to fry or stirfry I whack on the big fan. Ensures the oils aren't heading into the ducts, and I really don't care if flow is unbalanced for half an hour every now and then...

push down harder until it clicks locked?

But can we be sure whether the error happens at other times or not?

soot and ash are very different things... Soot means you're not really getting the fire hot enough, generally. / our Bronpi stove- if you're not careful- can have ash make it's way into the external air pipe underneath the unit if you aren't gentle with the ashpan. But there's no sign of any of that, even light fly-ash, making it's way upwards into the secondary and tertiary circuits.

other than a very occasional Aga, I don't think I've ever seen an indoor oil boiler this side of the wee pond

If funds are really tight and you can put up with the difference in insulation value, try 100 PIR over 50 EPS. The EPS is a bit more forgiving of the subfloor too...

This is like an unsealed expansion bottle in a car then, the only other way for it to deflate is a blockage in that pipe to the "overflow" bottle.

all of it?

because?

Throw up temporary, or buy a cheap set from the merchants, until the very last moment. Ours is a value-engineered lashup of oak, mdf, and something else solid-woody, but it really finished the hall off, very pleased with it.

See what Keylite can do for you too...

why would the tap need to be the same brand?