Many thanks - the tupperware 'low pass filter' solution works but not well - a lot of hacking the sizes of the holes to get the desired flow rate which really has to vary between summer and winter.
Also - the diagram is a lot neater than reality - the plastic pot has lumps of lead added to stop it floating away, the float is an old screw top plastic bottle and some fishing line Image may be NSFW.
Clik here to view.
I already replaced one immersion wire sensor with an aquarium switch to avoid cross talk between the pairs of wires - the voltage from the upper one was stopping the lower one from grounding. I think that two aquarium switches is next.
I repeat - many thanks for responses.
Also - the diagram is a lot neater than reality - the plastic pot has lumps of lead added to stop it floating away, the float is an old screw top plastic bottle and some fishing line Image may be NSFW.
Clik here to view.
I already replaced one immersion wire sensor with an aquarium switch to avoid cross talk between the pairs of wires - the voltage from the upper one was stopping the lower one from grounding. I think that two aquarium switches is next.
I repeat - many thanks for responses.
Statistics: Posted by westdale — Thu Nov 21, 2024 10:52 am
