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waterbutt question

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There isn't a convenient place to site a water butt to take water off the house roof but there is off the (single) garage roof, is that enough water to make it worthwhile, expense and botheration wise? I can collect kitchen sink water also, at least that's free
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  • spendaholic
    spendaholic Posts: 1,550 Forumite
    Part of the Furniture 1,000 Posts Debt-free and Proud! Name Dropper
    Once you rig one up to the garage you'll be amazed at how quickly it does mount up. But we're in 2 minds about getting one too because of the inital outlay expense.
    spendy/she/her ***DEBT-FREE DATE: 11 NOVEMBER 2022!*** Highest debt: £35k (2006) MY WINS: £3,541 CASH; £149 Specsavers voucher; free eye test; goody bag from Scottish Book Trust; tickets to Grand Designs Live; 2-year access to Feel Amazing App (worth £100); Home Improvement & Renovation Show tickets; £50 to spend on chocolate; Harlem Globetrotters tickets; Jesus Christ Superstar tickets + 2 t-shirts; Guardians of the Galaxy goody bag; Birmingham City v Barnsley FC tickets; Marillion tickets; Dancing on Ice tickets; Barnsley FC v Millwall tickets
  • Magentasue
    Magentasue Posts: 4,229 Forumite
    We have two, neither off the house roof. Our house has been extended at different times so we have two added on bits,single storey with sloping roofs (rooves?) and have sited water butts on them. Both fill up over the winter so, yes, worthwhile.
  • squeaky
    squeaky Posts: 14,129 Forumite
    10,000 Posts Combo Breaker
    If you want to do some sums you can roughly work out how much rain you'd need to fill a butt.

    Using round figures... rounding pi to three...

    If your water butt is 1 mtr in diameter...

    then it's area is (pi x r ^2)... 1/2 x 1/2 x 3 = 3/4 of a square metre.

    If it is also 1 metre high then its volume (area x height) is 3/4 x 1 = 3/4 cubic metres.


    Now for your garage roof. Just measure your floor area and halve it for a rought guide.

    If your roof is 4 metres long by 4 wide and apexed the area is 4 x 4 = 16 and half of that is 8 square metres.

    So now we need to know what depth of water on the roof is needed to fill the butt.

    depth times area = volume

    depth times 8 = 3/4

    Which is 3/4 divided by 8 which is a bit over 9cm or 3-4 inches of rain.

    Anything over that as reasonably regular rain in say, a month, will keep you well topped up. So... does it rain there? :)
    Hi, I'm a Board Guide on the Old Style and the Consumer Rights boards which means I'm a volunteer to help the boards run smoothly and can move and merge posts there. Board guides are not moderators and don't read every post. If you spot an inappropriate or illegal post then please report it to forumteam@moneysavingexpert.com. It is not part of my role to deal with reportable posts. Any views are mine and are not the official line of MoneySavingExpert.
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  • Queenie
    Queenie Posts: 8,793 Forumite
    Once you rig one up to the garage you'll be amazed at how quickly it does mount up. But we're in 2 minds about getting one too because of the inital outlay expense.

    Call your council - we bought ours several years ago discounted via the Council, they held a "sale" of them in a field one Sunday morning. We bought our compost bin the same way :D Give them a call and check out if they have/plan to have a similar scheme. Best of British :D
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    PMS Pot: £57.53 Pigsback Pot: £23.00
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  • Squeaky - I was just hoping for YES, it's worthwhile or NO, don't bother - now you've given me homework to do!!!! you mention an apex on the roof, there isn't one, it's flat so it's only the size of the floor. Cheshire is pretty well average for rain I'd say
  • moggins
    moggins Posts: 5,190 Forumite
    1,000 Posts Combo Breaker
    We sort of have a water butt, only ours is just an old plastic fruit syrup barrel with the top cut off. It's only under one down pipe but it seems to collect loads of water and I just dip my watering can into it when I need to water the plants.

    My answer would be a straightforward YES. Saving any water, no matter how little can only be a good thing.
    Organised people are just too lazy to look for things

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  • spendaholic
    spendaholic Posts: 1,550 Forumite
    Part of the Furniture 1,000 Posts Debt-free and Proud! Name Dropper
    squeaky wrote:
    If you want to do some sums you can roughly work out how much rain you'd need to fill a butt.

    Using round figures... rounding pi to three...

    If your water butt is 1 mtr in diameter...

    then it's area is (pi x r ^2)... 1/2 x 1/2 x 3 = 3/4 of a square metre.

    If it is also 1 metre high then its volume (area x height) is 3/4 x 1 = 3/4 cubic metres.


    Now for your garage roof. Just measure your floor area and halve it for a rought guide.

    If your roof is 4 metres long by 4 wide and apexed the area is 4 x 4 = 16 and half of that is 8 square metres.

    So now we need to know what depth of water on the roof is needed to fill the butt.

    depth times area = volume

    depth times 8 = 3/4

    Which is 3/4 divided by 8 which is a bit over 9cm or 3-4 inches of rain.

    Oh dear. I think I now need to go and lie down.
    spendy/she/her ***DEBT-FREE DATE: 11 NOVEMBER 2022!*** Highest debt: £35k (2006) MY WINS: £3,541 CASH; £149 Specsavers voucher; free eye test; goody bag from Scottish Book Trust; tickets to Grand Designs Live; 2-year access to Feel Amazing App (worth £100); Home Improvement & Renovation Show tickets; £50 to spend on chocolate; Harlem Globetrotters tickets; Jesus Christ Superstar tickets + 2 t-shirts; Guardians of the Galaxy goody bag; Birmingham City v Barnsley FC tickets; Marillion tickets; Dancing on Ice tickets; Barnsley FC v Millwall tickets
  • squeaky
    squeaky Posts: 14,129 Forumite
    10,000 Posts Combo Breaker
    Squeaky - I was just hoping for YES, it's worthwhile or NO, don't bother - now you've given me homework to do!!!! you mention an apex on the roof, there isn't one, it's flat so it's only the size of the floor. Cheshire is pretty well average for rain I'd say
    Ok...

    Lemme think...

    erm...

    Yes
    Hi, I'm a Board Guide on the Old Style and the Consumer Rights boards which means I'm a volunteer to help the boards run smoothly and can move and merge posts there. Board guides are not moderators and don't read every post. If you spot an inappropriate or illegal post then please report it to forumteam@moneysavingexpert.com. It is not part of my role to deal with reportable posts. Any views are mine and are not the official line of MoneySavingExpert.
    Never ascribe to malice that which is adequately explained by incompetence.
    DTFAC: Y.T.D = £5.20 Apr £0.50
  • spendaholic
    spendaholic Posts: 1,550 Forumite
    Part of the Furniture 1,000 Posts Debt-free and Proud! Name Dropper
    Queenie wrote:
    Call your council - we bought ours several years ago discounted via the Council, they held a "sale" of them in a field one Sunday morning. We bought our compost bin the same way :D Give them a call and check out if they have/plan to have a similar scheme. Best of British :D
    Thanks Queenie. Yes, they do the compost bins but I'll see if they do the waterbutts too. Only trouble is, when they've had the sale of compost bins it usually coincided with a severe lack of cash ...
    spendy/she/her ***DEBT-FREE DATE: 11 NOVEMBER 2022!*** Highest debt: £35k (2006) MY WINS: £3,541 CASH; £149 Specsavers voucher; free eye test; goody bag from Scottish Book Trust; tickets to Grand Designs Live; 2-year access to Feel Amazing App (worth £100); Home Improvement & Renovation Show tickets; £50 to spend on chocolate; Harlem Globetrotters tickets; Jesus Christ Superstar tickets + 2 t-shirts; Guardians of the Galaxy goody bag; Birmingham City v Barnsley FC tickets; Marillion tickets; Dancing on Ice tickets; Barnsley FC v Millwall tickets
  • spendaholic
    spendaholic Posts: 1,550 Forumite
    Part of the Furniture 1,000 Posts Debt-free and Proud! Name Dropper
    moggins wrote:
    We sort of have a water butt, only ours is just an old plastic fruit syrup barrel with the top cut off. It's only under one down pipe but it seems to collect loads of water and I just dip my watering can into it when I need to water the plants.
    Do you get many old leaves in it without a top?
    spendy/she/her ***DEBT-FREE DATE: 11 NOVEMBER 2022!*** Highest debt: £35k (2006) MY WINS: £3,541 CASH; £149 Specsavers voucher; free eye test; goody bag from Scottish Book Trust; tickets to Grand Designs Live; 2-year access to Feel Amazing App (worth £100); Home Improvement & Renovation Show tickets; £50 to spend on chocolate; Harlem Globetrotters tickets; Jesus Christ Superstar tickets + 2 t-shirts; Guardians of the Galaxy goody bag; Birmingham City v Barnsley FC tickets; Marillion tickets; Dancing on Ice tickets; Barnsley FC v Millwall tickets
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