Hi all,
I'm looking to harvest rainwater with a view to only using it for garden irrigation. An underground tank would seem best (I have a JCB due on site in a few weeks so the excavation and connections would not be a problem). The tanks I've looked at seem to cost > £1500 for around 5000 litres storage; however, septic tanks can be had for quite a lot less (~£800) for the same amount of storage, and a submersible pump is not exactly expensive.
Am I missing something here, or is it simply a case of septic tanks being produced by more companies so more competition on price? The only potential issue I can think of is that a septic tank would normally be fairly full (so the load of the surrounding soil/concrete may be countered by the internal load). Am I likely to get problems if I use a septic tank and it's near empty through the summer months?
Thanks for any help!
Duncan
I'm looking to harvest rainwater with a view to only using it for garden irrigation. An underground tank would seem best (I have a JCB due on site in a few weeks so the excavation and connections would not be a problem). The tanks I've looked at seem to cost > £1500 for around 5000 litres storage; however, septic tanks can be had for quite a lot less (~£800) for the same amount of storage, and a submersible pump is not exactly expensive.
Am I missing something here, or is it simply a case of septic tanks being produced by more companies so more competition on price? The only potential issue I can think of is that a septic tank would normally be fairly full (so the load of the surrounding soil/concrete may be countered by the internal load). Am I likely to get problems if I use a septic tank and it's near empty through the summer months?
Thanks for any help!
Duncan