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Thanks for the reply. I spoke to Grundfos tech Support. Apparently this is a common query as the documentation is not at all clear - they are looking to update it due to the number of calls they get. Great! Basically, it needs 22mm on the supply but 15mm is fine on the outlet. If you...

Hi guys, I've a plumber coming next Monday to plumb in a shower pump. I have bought one of these: http://www.plumbworld.co.uk/grundfos-niagara-15-bar-twin-1655-18701 All the web adverts for this pump say it is OK for use with 15mm or 22mm pipe work however when I read the manual, it...

Thanks for all your help. One final question - assuming I wanted to go ahead with this, is the digging of the trench and calculation of depth / fall etc something any decent builder would be able to do? Or is a more specialised area? It strikes me that you need to know what you are doing...

That's great - thanks. There is definitely enough for 5ft of fall. Who actually digs the trench and lays the pipe? Is that done by the water company as part of the £2k fee, or do they simply connect it up once I (or someone) has done the hard work. If the water board don't do all the...

Hello, I’m in the process of buying a house which has an old coach house at the end of the garden. The coach house is currently used as a games room and artist’s studio. It’s a turn of the century brick built structure with a pitched slate roof and two sets of double doors. I guess you...