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I have just turned on the MVHR a couple of days ago and I keep getting smoke into the intake of the MVHR from on of my neighbours chimneys which is about 10m away. With the weather not being so good in the last couple of days, they have been using their log burner and I'm kind of forced to switch the unit off unit I come up with the solution. My unit has a summer bypass and I was thinking of switching this on when I can smell/detect smoke. I'm trying to find a solution ESP based most likely to detect smoke in the intake and either switch the unit off or activate the bypass until no more smoke is detected. I'm in the process of building a Wemos D1 mini with Tasmota loaded on it with 3 relay to control the 3 speeds on the unit + other temperature sensors attached. I have some spare GPIOs so I can attach some kind of sensor and control the unit based on the smoke readings. If this fails I was thinking of making a prefilter box with some carbon granules and have the smell absorbed. But I think this way I will introduce more pressure into the system and I will have to speed up the unit and consume more power. I'm looking for ideas on how to proceed, any help is appreciated! PS: My neighbours are lovely, but this is a problem that I haven't foreseen and I need to find a solution quick so my wife stops complaining

I'm proposing that our downstairs loo will have a fixed window to stop people opening it and messing up the MVHR. I've been looking at the duofresh cistern from Geberit - has anyone installed/used one of these? Do they work?

Let me take you with me on my first steps on the road to cynicism in the building sector. For some reason (sewage smells?) many people appear to delay attention to the soft and smelly until it’s either too late or until they’ve backed themselves into the smallest room in the house; and then, trousers round their ankles, they allow someone to lock the door from the outside. Evidence? Use the search terms refusal and percolation on our LPA website. ‘Refused pending percolation test results’ is all too common. Imagine then my incredulity when, on the recommendation of a colleague, a company turns up to do a ‘PERK test (mate)’ for a drainage field on our land. Just a bit of context…. we live in sight of what was a clay quarry, within cricket ball throwing distance in fact So, there might just be a bit of clay around “Yeah, that looks fine (mate) you’ll get a drainage field on here no bother” he says without so much as lifting a shovel. “Tickety boo ” I say. “Gonna do the percolation test then?” “Aye… I’ll get ‘t shovel from ‘t van” “Where’s your machine then?” I ask. “No need for one (mate)” “I’ll get the tea on then” . Tea duly made…. yer man’s gone A square foot of the turf has been gently disturbed in one spot, and carefully replaced. An alarm bell sounds in the dim, dark recesses of my brain. And instantly switches off. Time for the pub. Friday is International Party Night in our place. Monday – Here are verbatim copy and past unedited (anonymised) passages from the written report; …I can confrm [sic!] that we have carried out a porosity test to determine the suitability of the sub soil. The percolation results indicate that an excavation area of 23m2 for the sub surface irrigation system is required…. …Condition of soil: Loam soil to the base of the excavation…. …Number of excavations: No.3 trail [sic!] pits to a depth of 550mm…. …Percolation values: Pit 1 – 16 secs/mm. Pit 2 – 20 secs/mm. Pit 3 – 19 secs/mm. Average percolation value: 19 secs/mm…. (Condition of soil: Loam soil to the base of the excavation.) The briefest look at H2 Drainage Fields and drainage mounds page 31 to 33 shows the requirement for hole to be dug to 300mm below the intended invert (para 1.33 page 32). In our case that would be a two meter deep hole at least. So, trying to be fair, I suggest to the company that I pay for a properly constituted percolation test. Here’s part of the emailed response from the company . ..However [our report] would be based on the procedure we carried out [reported in the quotation above] to confirm the first report which we have done 100’s of times and never been questioned by Building Control/Planners once. Talking to a different company rep about the matter and he grins disarmingly. And tells the story of a completely built house without access to either off mains drainage or a sewer. Off-mains drainage can be a show-stopper, not a lot of people know that. If like me you aren’t a builder, there’s no substitute for reading and reading and reading.