How Long Before A Water Butt Saves Money?

How Long Before A Water Butt Saves Money?

Author
Discussion

Geertsen

Original Poster:

1,099 posts

73 months

Hi,

I like the idea of installing a water butt for environmental reasons and cost saving but question how much they actually save financially when water costs are relatively low per litre.

For example, if I use 25 litres of water per day on the garden in the summer and buy a water butt for £50, how long would it take to break even? I feel like it would take years at 25 litres per day...?

Thank you

JoshSm

855 posts

51 months

You could check your water bill to see what 1m³ is costing you and go from there. Generally a litre of water costs a tiny tiny amount.

I suspect it would take decades to see the money back. Though that's common for lots of things people do.

ARHarh

4,678 posts

121 months

probably not worth thinking about the money saving. especially if you are not on a meter.

Might be worth checking with your water company as some offer free water buts.

Huzzah

27,989 posts

197 months

I use one for convenience sake.

OutInTheShed

11,106 posts

40 months

Metered water down our way is over £5 a tonne. Including waste water charge, which you might avoid?

We can get through 50 litres every other day easily, that's 10 small cans or 5 big ones.

Our main 200 litre water butt refills with a minor shower, I think it cost about £30 7 years ago and now it leaks.
It's amazing how rarely it's actually empty, even in so-called dry spells in spring and summer.
Such is the West Country.

I'd guess it's vaguely paid for itself, but the big bonus is that it takes 5 seconds to dip the can in the butt rather than waiting for the tap to fill it.
To get the best value you have to sort your guttering so the butts catch as much as possible and fill with every little summer shower.

A 1000 litre IBC we got for £15 is a much clearer proposition.

We also run a pumped irrigation setup from the butts.

There are other bonuses, like I can pump a hose from it to clean a mountain bike when there's a hosepipe ban.

If you can get used industrial plastic barrels, they can be cheaper and last longer. But they are sods to transport!
They may also need cleaning!
And they look a bit stark on the patio as they're usually bright blue.

SP_

2,958 posts

119 months

Huzzah said:
I use one for convenience sake.
What's wrong with the tap?

danb79

11,376 posts

86 months

We have x5 210l water butts at the back of our garage, all fed by what the roof catches and then daisy-chained

Like this: https://www.amazon.co.uk/Outdoor-Rainwater-Black-C...

They fill really well when its good rainfall; I've also connected an old hosepipe to them that runs from the bathroom at the back of the house, so when we have a bath and the water butts need additional water; it gets syphoned into them hehe



Works well!

GasEngineer

1,420 posts

76 months

If you include the 90% sewerage charge my water is 0.0047 pence per litre (up from 0.0040 pence last year).

So if I've got it right; you'd need to harvest 10000 litres in your waterbuck to break even.



Spare tyre

11,146 posts

144 months

In theory it’s better for the plants and environment

We have three daisy chained together

Always keep a can topped up underneath each one, makes it a little more convenient that heading back to the tap

If you are looking just at cost saving dont bother

OutInTheShed

11,106 posts

40 months

GasEngineer said:
If you include the 90% sewerage charge my water is 0.0047 pence per litre (up from 0.0040 pence last year).

So if I've got it right; you'd need to harvest 10000 litres in your waterbuck to break even.


Do you mean £4.70 per 1000 litres?
10,000 litres is about right, paying full whack for a 200 litre butt and diverter kit.

Our house and garage have about 100 sqm of roof draining into butts.
That collects in theory, 1000 litres for a cm of rain. In practice the first mm of rain probably just evaporates off the roof.
Even a really dry month in Devon tends to have a couple of cm of rain

One butt with a high throughput can pay for itself fairly quickly.
Multiple butts that don't turn over may not pay for themselves any time soon if you pay proper money for them.
My cousin in Kent probably has longer drier spells and might not get the turnover?

But plants are expensive, watering them in the best, most convenient way makes sense.

I think when my leaking water butt is next empty, it might begin a new life as a planter for a shrub. I'll saw it in half.
So at least I'll recoup some value from the poxy thing.
The weakness of these things around the tap is piss poor design that someone should be dunked in a water butt for, but what's guaranteed for 7 years these days?

Geertsen

Original Poster:

1,099 posts

73 months

Thank you all for the replies, it’s very interesting. Seems pretty definitive regarding cost saving. Our outside tap is at the front of the house so with what everyone has said I am thinking that convenience could be a factor too as I wouldn’t have to fill up at the front of the house to water the back garden.

Geertsen

Original Poster:

1,099 posts

73 months

danb79 said:
We have x5 210l water butts at the back of our garage, all fed by what the roof catches and then daisy-chained

Like this: https://www.amazon.co.uk/Outdoor-Rainwater-Black-C...

They fill really well when its good rainfall; I've also connected an old hosepipe to them that runs from the bathroom at the back of the house, so when we have a bath and the water butts need additional water; it gets syphoned into them hehe



Works well!
Thank you for this. I was interested in the idea of using water from the bath/shower but couldn t get my head around making this work easily...how is the hosepipe connected to your waste water?

DavePanda

6,733 posts

248 months

You won't save money but rainwater is generally better for plants than tap water, especially if you have very hard water. There's also the benefit if like me you add plant food directly to the water butt so its ready mixed for future use.

Huzzah

27,989 posts

197 months

SP_ said:
Huzzah said:
I use one for convenience sake.
What's wrong with the tap?
Potting shed about 50m from the house.

dickymint

27,056 posts

272 months

DavePanda said:
You won't save money but rainwater is generally better for plants than tap water, especially if you have very hard water. There's also the benefit if like me you add plant food directly to the water butt so its ready mixed for future use.
Yes. If you put comfrey and/or nettles to infuse you get 'free' liquid fertiliser.

AlexC1981

5,267 posts

231 months

I only use my water butt to top the pond up with rainwater. The pressure is a bit low to water the garden with and I'd rather save the water for the pond.

GliderRider

2,653 posts

95 months

SP_ said:
Huzzah said:
I use one for convenience sake.
What's wrong with the tap?
Dipping the watering can in the top of the water butt fills it a lot more quickly than holding it under the tap (plus reducing wear and tear on the tap and the vulnerable area around it, as alluded to by the OP). Filling a bucket at the same time, before heading to where the water is needed, reduces the number of journeys. If precision watering is needed, transfer it from the bucket to the watering can, or else water straight from the bucket.

Turtle Shed

2,029 posts

40 months

Whatever the answer, it will be twice as long if you have a septic tank.

Sewerage is pretty much half of the cost of water supply if you are connected to a mains sewer.

Edited by Turtle Shed on Sunday 8th June 17:38

Evanivitch

23,837 posts

136 months

If you're on a combined sewage system then install a water butt and save us all some river poops.

SP_

2,958 posts

119 months

GliderRider said:
SP_ said:
Huzzah said:
I use one for convenience sake.
What's wrong with the tap?
Dipping the watering can in the top of the water butt fills it a lot more quickly than holding it under the tap (plus reducing wear and tear on the tap and the vulnerable area around it, as alluded to by the OP). Filling a bucket at the same time, before heading to where the water is needed, reduces the number of journeys. If precision watering is needed, transfer it from the bucket to the watering can, or else water straight from the bucket.
Fair - makes sense!