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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!

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    • CommentAuthorphiledge
    • CommentTimeNov 25th 2015 edited
    Just relocated our 30 tube panel to make room for a PV array and need to refill the anti freeze. When I originally filled it I used concentrated antifreeze which I just poured in and topped up with mains water that also pressurised the system.

    Without thinking I bought readymixed Solar S1 so I need to be able to pump it in at around 2 bar without adding water so it doesnt get diluted. Any ideas? I guess there are pumps out there but I've not come across any.
    • CommentAuthorbillt
    • CommentTimeNov 25th 2015
    5l garden sprayer, available for less than £10. You'll have to make up an adapter though.
    • CommentAuthorwookey
    • CommentTimeNov 25th 2015 edited
    Navitron will sell you one: http://www.navitron.org.uk/store/solar-panels-hot-water/solar-ancillaries/solar-loop-accessories/filling-kit-for-antifreeze-hand-pump (although rather more then the tenner billt mooted, your local garden centre may well offer a better deal than this. The one I have is pretty robust and I think I paid about £15).

    The pipe is the same OD as 10mm copper so making up a fitting to go into your pipework should be straightforward.
    • CommentAuthorphiledge
    • CommentTimeNov 25th 2015
    Great. Didnt think the garden sprayer would get up to a couple of bar but will give it a shot. Thanks.
    • CommentAuthorwookey
    • CommentTimeNov 27th 2015
    2bar is no problem for it.
    • CommentAuthorphiledge
    • CommentTimeNov 27th 2015
    Good stuff. Job for the weekend before we get anymore cold weather. PV's being installed monday and tuesday so I want the thermal panel all sorted before then!
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