ᐅ Rainwater Harvesting Cistern for Garden Irrigation – Which Pump Should I Use?
Created on: 9 Sep 2020 14:49
D
DerGuteTon
Greetings!
I am gradually starting to plan the garden irrigation for my soon-to-be-completed house. For now, I want to keep it simple and non-smart: a cistern (6,000 liters) is installed underground, and I plan to water the garden conventionally using a pump and garden hose. The farthest lawn area will be reachable with about 35 to 40 meters (115 to 130 feet) of hose length. The cistern is located at the lowest point, about 2.50 meters (8 feet) underground.
Now I am facing a confusing variety of possible pumps: suction pump, dirty water pump, submersible pump, garden pump, deep well pump... several thousand liters per hour, various pressure ratings in bar... Does anyone have good advice?
I am gradually starting to plan the garden irrigation for my soon-to-be-completed house. For now, I want to keep it simple and non-smart: a cistern (6,000 liters) is installed underground, and I plan to water the garden conventionally using a pump and garden hose. The farthest lawn area will be reachable with about 35 to 40 meters (115 to 130 feet) of hose length. The cistern is located at the lowest point, about 2.50 meters (8 feet) underground.
Now I am facing a confusing variety of possible pumps: suction pump, dirty water pump, submersible pump, garden pump, deep well pump... several thousand liters per hour, various pressure ratings in bar... Does anyone have good advice?
S
Stefan2.8421 May 2021 10:47That would of course also be an option.
immermehr schrieb:
none of these but Plan 3 (see attachment)@immermehr I need to follow up here because this will be relevant for me soon as well. Do you see this solution as practical? If you want to work on the pump, can you disconnect the 90° connector and lift the pump out?
Thank you very much
rick2018 schrieb:
What do you want to do with the pump?
In autumn, just blow the system empty with a compressor, and that’s it.
For maintenance, simply disconnect the fittings and lift it out. I haven’t touched the pump at my mother’s place for 10 years… You never know… but if necessary, you just have to go down there.
I would plan to install a T-piece inside the cistern and fit a valve on one outlet. That way, you can open it in autumn to drain the water from there.
Have you planned to fill the cistern with drinking water?
I would like to install a DN32 pipe (is that suitable for up to 50m (164 feet)?) or DN63 from the water supply line to the cistern for filling, with a solenoid valve before the cistern.
Does it make sense to connect water outlets directly to this line? For example, if you want to attach a garden shower at some point.
I would like to install a DN32 pipe (is that suitable for up to 50m (164 feet)?) or DN63 from the water supply line to the cistern for filling, with a solenoid valve before the cistern.
Does it make sense to connect water outlets directly to this line? For example, if you want to attach a garden shower at some point.
The refill does not need to be larger than the water meter. In theory, a small pipe is sufficient. For example, start the refill as soon as the cistern is half empty. If no watering is done, stop the refill when the cistern is half full. This way, there is still enough space for rainwater.
DN63 does not require a standard installation. Mine is "unusual," and I have DN63. However, my pump also handles over 35 cubic meters (35,000 liters).
Yes, you can connect the water dose directly to the pipe. A new shower does not need to be switched and has its own faucet.
DN63 does not require a standard installation. Mine is "unusual," and I have DN63. However, my pump also handles over 35 cubic meters (35,000 liters).
Yes, you can connect the water dose directly to the pipe. A new shower does not need to be switched and has its own faucet.
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