Pocster Posted Monday at 11:44 Share Posted Monday at 11:44 I originally was going down the route of rwh . Even got a non return valve put in at the request of Bristol water . Guy came out and actually told me it probably wasn’t worth it ; his reasoning : maintenance / replacement pump suggested not using it for toilets as can stain ( so some chemical agent needed adding to the stored water ) So use for what ? Watering the garden ? - that’s about it . With the purchase costs of a tank etc I just couldn’t get any sensible roi . So dropped the idea . As our water is metered it is relatively expensive , but even if I did install and used for garden , toilets , washing machine - I think savings would be minimal. Link to comment Share on other sites More sharing options...
Nickfromwales Posted Monday at 12:39 Share Posted Monday at 12:39 53 minutes ago, Pocster said: I originally was going down the route of rwh . Even got a non return valve put in at the request of Bristol water . Guy came out and actually told me it probably wasn’t worth it ; his reasoning : maintenance / replacement pump suggested not using it for toilets as can stain ( so some chemical agent needed adding to the stored water ) So use for what ? Watering the garden ? - that’s about it . With the purchase costs of a tank etc I just couldn’t get any sensible roi . So dropped the idea . As our water is metered it is relatively expensive , but even if I did install and used for garden , toilets , washing machine - I think savings would be minimal. Yup. Spend the money on something that has no moving parts, near zero maintenance, and gives an instant RoI. Solar PV, or more solar PV, or a battery. 1 Link to comment Share on other sites More sharing options...
Pocster Posted Monday at 12:43 Share Posted Monday at 12:43 2 minutes ago, Nickfromwales said: Yup. Spend the money on something that has no moving parts, near zero maintenance, and gives an instant RoI. Solar PV, or more solar PV, or a battery. I did Uncle Nick.! PV, battery, then more PV and another battery. With my EV ( admittedly low annual mileage ) my ROI is around 6 years from when first installed. If we have a stellar sunny summer I reckon I won't be far off break even this year. 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted Monday at 13:38 Share Posted Monday at 13:38 54 minutes ago, Pocster said: I did Uncle Nick.! PV, battery, then more PV and another battery. With my EV ( admittedly low annual mileage ) my ROI is around 6 years from when first installed. If we have a stellar sunny summer I reckon I won't be far off break even this year. Good girl. Help yourself to a cookie. Link to comment Share on other sites More sharing options...
Pocster Posted Monday at 13:39 Share Posted Monday at 13:39 Just now, Nickfromwales said: Good girl. Help yourself to a cookie. You've said that before haven't you? Link to comment Share on other sites More sharing options...
Temp Posted Monday at 13:45 Share Posted Monday at 13:45 We have an underground rainwater harvesting tank with a leaf filter on the input. It's been in use since 2007 and has accumulated about 1 ft of sludge in the bottom. We only use it for gardening and car washing but the water does have a brown tint to it. 1 1 Link to comment Share on other sites More sharing options...
Pocster Posted Monday at 14:14 Share Posted Monday at 14:14 28 minutes ago, Temp said: We have an underground rainwater harvesting tank with a leaf filter on the input. It's been in use since 2007 and has accumulated about 1 ft of sludge in the bottom. We only use it for gardening and car washing but the water does have a brown tint to it. Out of interest are you going to ( able to ! ) get in there and suck the sludge out ? Link to comment Share on other sites More sharing options...
saveasteading Posted Monday at 14:28 Share Posted Monday at 14:28 40 minutes ago, Temp said: about 1 ft of sludge in the bottom. That seems an awful lot, after a leaf filter. My 1920s brick single chamber cess tank had that much on the bottom. Not bits of leaves. Any idea what it is? would you change anything another time? Link to comment Share on other sites More sharing options...
Nickfromwales Posted Monday at 15:59 Share Posted Monday at 15:59 2 hours ago, Pocster said: You've said that before haven't you? Yes. I'm sorry. There are no cookies. "somebody" ate them. Link to comment Share on other sites More sharing options...
Temp Posted 12 hours ago Share Posted 12 hours ago On 27/01/2025 at 14:14, Pocster said: Out of interest are you going to ( able to ! ) get in there and suck the sludge out ? Yes. There is a manhole big enough to climb in but that might be dangerous (lack of oxygen or too much CO2 etc). I can see me hiring a cespit company to pump it out at some point. 1 Link to comment Share on other sites More sharing options...
Alan Ambrose Posted 12 hours ago Share Posted 12 hours ago Sounds like a silt chamber is a really useufl addition to RWH. Link to comment Share on other sites More sharing options...
Temp Posted 12 hours ago Share Posted 12 hours ago On 27/01/2025 at 14:28, saveasteading said: That seems an awful lot, after a leaf filter. My 1920s brick single chamber cess tank had that much on the bottom. Not bits of leaves. Any idea what it is? would you change anything another time? We have a lot of trees and I think some leaf fall rots in the gutters before being washed through the leaf trap when there is a heavy downpour. I have to vacuum out the gutters twice a year with a wet vac but it's impossible to get all the "compost" out of them. 1 Link to comment Share on other sites More sharing options...
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