Thu, 10 Sep 2026 20:48:42 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105237#Comment_105237 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105237#Comment_105237 Tue, 15 Mar 2011 19:45:48 +0000 CWatters
http://www.wte-ltd.co.uk/condensing_boilers.html

"These condensates will dissolve lime-based mortar, clay drainage pipes, concrete septic tanks and kill the beneficial bacteria in sewage treatment systems"

Possible solution?

http://www.plumbingpark.co.uk/plumbing_hvac_article13091.html

"Salamander Condensafe+ neutralises acidic waste from condensing boilers "]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105279#Comment_105279 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105279#Comment_105279 Wed, 16 Mar 2011 07:28:13 +0000 Joiner
We have a choice of re-routing the condensate pipe to the (trade recommended) internal waste which goes to the cess pit or leaving it where it is, draining into a soakaway.

The first option would anyway be very difficult to achieve because of the boiler's location, but we seriously considered it to avoid future freeze-ups by having to box-in the existing external run which will be unsightly. But I think that's the one we'll go with to avoid discharge into the main soil pipe.

I knew the discharge was acidic because it says so in the manual, but not how acidic! I now know why we have a pristine-clean drain cover and surround to the rainwater soakaway.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105631#Comment_105631 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105631#Comment_105631 Sun, 20 Mar 2011 02:21:57 +0000 ListysDad
In those situations I'd reccomend taking it internal mostly and then out into either a neutraliser or its own soakaway but just ensure it is PROPERLY insulated. Oh also, when constructing, do notuse elbows; use 2 x 45s instead, ensure all ends are square and DO NOT put adhesive in fitting but on pipe so it has less chance of blocking the flow. I learned the hard way!

One other thing to consider, unfortnaley running it internally is NO guarantee of it not freezing. I went to a number of frozen pipes located either behind kitch cabs or under cupboards and behind plinths. If you have an older building with perhaps solid walls, all pipework, as its insulated from ambient temp, near outside walls MUST be insulated. When my next kitchen goes in all pipework will be insulated for sure.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105654#Comment_105654 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=5147&Focus=105654#Comment_105654 Sun, 20 Mar 2011 09:59:00 +0000 Joiner