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Apologies if this is an obvious one. I've been searching all through internet, building standards, NBS and everywhere and couldn't find a conclusive answer. I'm aware for an individual flat or house a main wastewater drain would be c. 110m diameter. Would you suggest 160mm diameter when multiple flats run into it? (See the attachment) Thanks a lot in advance! Stephan

I'm installing a 16kw air source heat pump next week, and need to put in a spot to anchor it. I'm wondering if people can comment on how they've installed them and what has worked? I'm aware this ASHP will put off a lot of water (60-100l a day) and there's an inlet for sewer/waste water (it's a combined one system) about 4ft away from the installation point I've chosen. Should I put down some combination of sand, gravel and top off with cement? Or just small cement bits for the footings for the ASHP mount points? And what about water drainage? I can run some 40mm pipe from top of the pad, or a kind of soakaway. I'm just not quite sure whether 100l is too much to just drain in place. The ASHP is downslope slightly from the sewer inlet which is only about 2" below ground, so it's likely I'd need to run pipes above ground from ASHP. Would love to hear what you've done, and what has worked - and photos if you have 'em!

We have a Klargester BioFicient+ waste water treatment system, It has an air blower attached to it, between the treatment system and the air blower there is a solenoid which regulates the air going to the system, every 60 minutes it allows air into the tank for 60 seconds. However for the other 59 minutes of the hour the air blower is operational but doing nothing as the solenoid is blocking the air. This is my understanding of how it all fits together ! pls correct me if I'm wrong. I was wondering if i could remove the solenoid, and attach the blower to a smart socket which would come on for a minute every hour hence controlling how much air is going to the tank, but also meaning the air blower is not running 24hours a days. The blower is a bit noisy hence my preference for it not to be running 24hours a day.

Good Afternoon All, As usual I am looking for a bit of advice. I am in the process of submitting full planning and have already had a "favourable" pre-app assessment/consultaion We are building a small house on some land we have acquired from our parents. We are in the process of also submitting a right of access to the road (which seems also to be going well..fingers crossed). Our main issue is SERVICES ...the problem we have is that the recent development "across the road" is unadopted and as far as we are able to ascertain we cannot get easily connected with anything ....further to that if we stay on the same side of the road ..its 100m at LEAST to the nearest curent point for only SOME services. We have consulted with Gas and Electric and Also Freshwater ..and they have advised us the easiest way could be to connect "through" our families property...(which they have no issue) and create a "wayleave?" into the deeds. So now we get to wastewater ....(and here it gets tricky) Our Parents are on a Cesspit ..have been for 30 years and SOME of the adjoining properties still are (as it is an old village) ..there is mains sewage now on their road ....but i suppose a few have thought if it ain't broke ....etc etc. So we stated off looking at various cesspits, treatments etc etc for our new house ...as we didnt fancy the idea of waste pipes struggling to shift (god knows what) 50 metres... I have just had a VERY interesting conversation with a company ...so I am looking for your guys learned knowledge. He has suggested a "pumping station" ..I have never come across them ?! I mean we are digging a services trench anyway for the rest of the services ....and we are also thinking that our parents sewage is also on that side of the house. so what do you think ...Pumping Station OK ...for building regs etc ? would it be simple to "connect up" or at the same time channel our parents waste to the mains sewage ? I plan on doing most of the donkey work myself ..any advice chaps? your help is as always appreciated I attach the pump that was recommended on PDF and also an image of our area Red = Our Land where we hope to Build Blue = Our Parents Land Green = the proposed path of other services FEKA_VS brochure.pdf