October 22, 20223 yr Author 26 minutes ago, TonyT said: I would use whatever thickness is suitable for the clips you plan to install so you can get the maximum insulation without making the installation ridiculously difficult. I would use climaflex inside. Was going to use these clips. https://www.screwfix.com/p/talon-15mm-hinge-clip-white-100-pack/19684 so will pick some up and measure
October 22, 20223 yr Author 2 minutes ago, Nickfromwales said: 100%. I am now fully committed to using local PIR’s to activate the HRC pump. I also use the same PIR’s ( via a luxury sensor ) to trigger Pee lighting after sundown ( dusk to dawn ). Two birds one stone. Top of the kitchen plinth is where I install a stealthy sub-miniature PIR for HRC at the kitchen, with the sensor about the size of a £1 coin. Loxone will have that covered for me. 😊
October 22, 20223 yr 25 minutes ago, TonyT said: I would use whatever thickness is suitable for the clips you plan to install so you can get the maximum insulation without making the installation ridiculously difficult. I would use climaflex inside. I don’t use clips, I use all round band, black powder coated. For the HRC I use 25mm wall 22mm bore Climaflex and then a 50mm waste clip works perfectly.
October 22, 20223 yr 2 minutes ago, Thorfun said: Was going to use these clips. https://www.screwfix.com/p/talon-15mm-hinge-clip-white-100-pack/19684 so will pick some up and measure For any I insulated pipes yes, if using on insulated pipes you’ll need Talon clips plus Talon spacers or the pipe won’t be far enough from the mounting surface to allow for the insulation.
October 22, 20223 yr Author 36 minutes ago, Nickfromwales said: I don’t use clips, I use all round band, black powder coated. For the HRC I use 25mm wall 22mm bore Climaflex and then a 50mm waste clip works perfectly. is that so you don't have to cut the insulation around the clips? you can insulate the pipe and then strap band it to the wall?
October 22, 20223 yr 2 hours ago, Thorfun said: I'm kind of thinking of taking the 'better safe than sorry' approach to my DIY plumbing! Ffs . I asked about lagging and everyone said yes for the hot especially if it’s a long run . For the small cost lag all hots . THERE ! I am right !
October 22, 20223 yr 11 minutes ago, pocster said: I asked about lagging and everyone said yes No I didn’t 🖕
October 22, 20223 yr Author 11 minutes ago, pocster said: Ffs . I asked about lagging and everyone said yes for the hot especially if it’s a long run . For the small cost lag all hots . THERE ! I am right ! what size insulation did you use? 9mm/13mm/25mm/something else? and did you use Climaflex as well?
October 22, 20223 yr 6 minutes ago, Thorfun said: what size insulation did you use? 9mm/13mm/25mm/something else? and did you use Climaflex as well? 9mm and Climafkex . The heat loss even over 20m is low but I still think worth it .
October 22, 20223 yr 25 minutes ago, pocster said: Ffs . I asked about lagging and everyone said yes for the hot especially if it’s a long run . For the small cost lag all hots . THERE ! I am right ! They should listen and stop slagging you off all the time.
October 22, 20223 yr 19 minutes ago, Onoff said: They should listen and stop slagging you off all the time. I know . I’m a qualified plumb (h) er and no one listens .
October 22, 20223 yr 42 minutes ago, pocster said: Ffs . I asked about lagging and everyone said yes for the hot especially if it’s a long run . For the small cost lag all hots . THERE ! I am right ! You know too much, so we build in some insurance with your project
October 22, 20223 yr 3 hours ago, Thorfun said: is that so you don't have to cut the insulation around the clips? you can insulate the pipe and then strap band it to the wall? Yup. Not life or death, but every little helps.
October 22, 20223 yr Author so I finished the internal 110mm soil pipes (mostly anyway, still go the en-suite above the garage to do). here's the 3rd run. starting in an en-suite down to the downstairs WC in to the basement where the rest bend takes it on the horizontal and I have a rodding point across a hallway to join up with the other 2 runs and out the basement wall all look ok?
October 22, 20223 yr Author then I pressure tested the whole system (already did each run individually and was all ok so wasn't expecting any issues) and it passed with flying colours. before: after 5 mins: testing at the manhole outside with all ok I fitted the AAVs on 2 of the stacks anyone notice any issues?
October 22, 20223 yr 5 hours ago, Nickfromwales said: I don’t use clips, I use all round band, black powder coated. For the HRC I use 25mm wall 22mm bore Climaflex and then a 50mm waste clip works perfectly. Yes I use the same, but didn’t want to complicate it…👌
October 22, 20223 yr Author 5 minutes ago, TonyT said: Yes I use the same, but didn’t want to complicate it…👌 I have plenty of the stuff! bought 20m of it previously so could easily use it instead of clips. but, don't clips hold pipe vertical as well as stopping it falling away from the wall, so how does the strap band do this?
October 22, 20223 yr You wrap it around the pipe and put a single screw through both ‘ends’ of the all round band/bow band.
October 22, 20223 yr Author 1 hour ago, TonyT said: You wrap it around the pipe and put a single screw through both ‘ends’ of the all round band/bow band. Thanks for the explanation. I’ll give it a trial when I can and take a photo to ask if I’ve done it how I understand it
October 23, 20223 yr Author On 22/10/2022 at 09:15, Nickfromwales said: I only consider condensation on the cold ( far worse in winter ) an issue, so insulate the cold runs if I think there’s going to be any chance of a problem. For the cost, it’s something I’d go for tbh. On the hot runs, waste of time afaic, unless you’re running an HRC. hey, @Nickfromwales. can you please explain to me why you need to insulate an HRC but not a normal hot pipe? surely the point of an HRC is to replace the cool water with hot water when the hot tap is needed. so, assuming you have some form of occupation sensor and someone isn't spending 20 minutes on the loo then would the HRC/hot pipe really lose that much heat during the period of occupancy? or is there another specific reason for the lagging of the HRC/hot pipe combo?
October 23, 20223 yr Author 57 minutes ago, Russell griffiths said: Don’t forget to strap the life out of that rest bend. so what's there now isn't sufficient?
October 23, 20223 yr Author back to the plumbing manifolds. this is the design I've come up with. as there were no previous comments on the last design drawings I figured there weren't any major issues. it's a LOT of pipe! here's a photo of my plant room and where I was thinking of putting each manifold and the UVC. was going to put the hot manifolds against the wall and the cold ones sitting in front proud of the wall to save a bit of space (not that space is short in the plant room but I quite like the efficiency of the staggered manifolds like in this photo of someone else's setup taken from a thread on here. I have read many discussions on here about the size of pipe and have decided for simplicity to simply run 15mm everywhere and the HRC in 10mm. I know I could do the basins in 10mm but if I'm running an HRC to them then that will clear the dead leg and so I can use the 15mm without worrying about that side of it. anyone got any comments/suggestions/criticisms/plaudits before I purchase the plethora of manifolds and start running pipework!
October 23, 20223 yr 40 minutes ago, Thorfun said: back to the plumbing manifolds. this is the design I've come up with. as there were no previous comments on the last design drawings I figured there weren't any major issues. it's a LOT of pipe! here's a photo of my plant room and where I was thinking of putting each manifold and the UVC. was going to put the hot manifolds against the wall and the cold ones sitting in front proud of the wall to save a bit of space (not that space is short in the plant room but I quite like the efficiency of the staggered manifolds like in this photo of someone else's setup taken from a thread on here. I have read many discussions on here about the size of pipe and have decided for simplicity to simply run 15mm everywhere and the HRC in 10mm. I know I could do the basins in 10mm but if I'm running an HRC to them then that will clear the dead leg and so I can use the 15mm without worrying about that side of it. anyone got any comments/suggestions/criticisms/plaudits before I purchase the plethora of manifolds and start running pipework! 15mm everywhere . That’s means you purchase one lot of pipe and fittings . Easier if it’s all one size and (expletive deleted) anyone else who says different. I’ve built an entire house on 15mm ( as advised on this forum ) so why change . THERE ! I’m right again .
October 23, 20223 yr On 22/10/2022 at 16:53, Thorfun said: anyone notice any issues? Of course. Us professionals cannot possibly allow you, as a newbie, to get this right first time now can we?! So; OK. The rest bend will eventually fall off. Do as Bruce says above, and clamp that well. The shoe on the bend is supposed to be where the thud gets arrested, but that’ll be off before you know it
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