Thorfun

that is a great tip! thanks.

@Nickfromwales. is this how you plumb your customer's sites? or do you give them the option of either way as I presume the manifold way is more expensive on labour and materials?

indeed it does. also ties in with my requirement to centralise my lighting system as well. have everything branch out from the plant/comms room. seems so very logical to my mind. ps. sorry to @Russell griffiths for hijacking your thread! ?

ok, thanks guys. I think I understand both methods now. I believe that every house I've ever lived in has had it the way @PeterW mentions as a standard loop (probably why it takes ages for the hot taps to get hot water!). but, even though it's more pipe I really like the idea of having a centralised location for all the pipes to that you can isolate them at one place. I've a feeling that if I get a professional to do the plumbing that they'd go for the standard loop way as it's easier and cheaper on materials and time!

not being a plumber but being very interested in learning, what's the benefit of having a manifold like that rather than some other system? is there even another way of doing it? would this be implemented where the water supply enters the building or can you run a big pipe from where the supply enters to another location in the house and in to the manifold for distribution? sorry for the noddy questions, I've not really started investigating plumbing yet!

yeah, you're correct although the timelines to be in are being dictated by SWMBO. if it was me on my own then I could take more time and save more money. it's a delicate balancing act between time, ability and money!

yeah, some form of remote monitoring will definitely be on the cards as well here.

actually, just checked my email trail and this was written... "With regards to sump pumps we has proposed an internal Delta V3 Dual and an external Delta V3 Single to the sunken garden, it may be possible to revise this to relocate the Delta V3 Dual to the sunken garden and do away with the Delta V3 Single, and this would be dependent on the proposed drainage to and around the property." so the waterproofing company are suggesting it's possible to just have the dual sump pump externally and nothing internally. I'm assuming the dual sump pump will have 2 pumps for redundancy.

ok, thanks. you and @PeterW have made me doubt myself so I've gone back to the plans from the waterproofing company and they have designed 2 x pumps, one internally and one externally in the sunken courtyard. I think where I'm getting confused is that the Civil engineers also wanted a pump in the external courtyard and so I requested that the civil engineer's pump and the waterproofing company's pump are amalgamated so we only have the one pump externally. but we still have a double sump pump internally in the plant room. sketch attached below. isn't that what the Powerwall 2 is for?

thank you for this! I hadn't thought about doing this DIY as it's not something I want to get wrong and I thought the quote for the waterproofing company to do it was 'reasonable'. plus it means that any issues they will have to get it sorted out. sometimes that piece of mind is priceless. but I will definitely keep the link and keep it all in mind if I need to make some potential savings.

interesting, no one has mentioned that as a possibility. I was trying to negate the need for 2 x sumps and pumps and also trying to remove the need to have a pump internally in the basement. I'll speak to them all about it. thanks for pointing out this possibility.

I also think @pocster is using the same type C waterproofing as well iirc. @pocster?

that's interesting. he seemed to imply that if there were issues it would come back to them.

the system designed is internal and so we wouldn't be using Type A (external tanking like yours) at all. we'd have Type B (waterproof concrete) and Type C (internal drainage). I'm a cynical person and I am concerned that the waterproofing company have suggested this route as there's more 'profit' in it for them but as I'm not an expert in all this and definitely don't want to have water ingress issues in the basement I have to go with what the experts suggest and are willing to sign off and guarantee. this is one area I don't want to skimp on financially but I also don't want to be taken for a ride!

thanks @Mr Punter. I'm not so worried about the reduction in floor space as the basement is pretty big! the only issue might be the plant room but I'll figure something out. sump and pumps have already been designed and as we have a sunken courtyard I've requested that we use a single pump in the courtyard to deal with the internal drainage and the sunken courtyard drainage as well. I need to have 2 forms of waterproofing and so the second form is a choice between tanking or waterproof concrete. the waterproofing company have designed waterproof concrete as the second form of protection so we'll probably just stick with that until I can compare costs for the waterproof concrete compared to the external tanking. I've read @Bitpipe's many posts on the subject and initially just wanted to copy him but the architects weren't happy with that solution and as they'd be responsible as principle designer and so got the design by the waterproof company. I have said to them though that if/when I speak to the groundworks companies they suggest Type A and Type B and will fully guarantee it then that will be ok for the architects. so we've a long way to go in our journey and things might change!

morning all, our architects as principle designers needed to consult with a waterproofing company to design our basement's waterproofing system and weren't happy with just waterproof concrete and external tanking unless it was signed off by them. the waterproofing company came back with the following: to be fair I don't really have a problem with the internal system I was just wondering if anyone had any comments, experiences, preferences, advice for this route of basement waterproofing?

welcome. the forum has a very useful search function where you can find a multitude of posts on Sunamp and ASHPs.

si señor!

as this is a Tesla/Apple-love-in thread, this arrived a short while ago.

I'd be upfront with the groundworks company that did the quote and ask them! they should be able to break it down for you. I'm very interested in the result if you do as I'm in a similar position in that I should be looking for quotes in the next couple of weeks for our basement and foundations.

as much as I enjoy the updates, haven't you got a bathroom or two that need finishing?

and that warm fuzzy feeling is worth more than any ROI or financial repayment period etc

I don't think it's sad! in fact I was going to ask about it today as it's nice and sunny down here in Sussex. looks like it'll be a good day for your battery charging today.

maybe if we don't put a kitchen in.....or bathrooms.....or heating.....or lighting..... let me run that by the wife and see what she says.

don't worry too much. it won't stop me from the path I'm looking to tread.