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    How come the voltage across plates is lower when there's no water flow?

    Hi I've noticed that the voltage across the plates in our chlorinator cell is lower when there's no water flow or not submerged in water. AFAIK there'd be no current flowing through the plates when there's no water flow, and as a result the plates wouldn't overheat. Does anyone know why the...
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    Two-plate cell issue

    Hi all, I'm having some issues with our cell which has just two long plates. I've measured the voltage across the two plates and it's only 0.23V. The cell comes with two red wires, which connect directly to the plates, and one black wire, which appears to be ground. The voltage across the red...
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    Faulty chlorinator or salt cell?

    Hi I've noticed that our cholorinator has only been around 30% effective recently based on the reading on the builtin meter. Does anyone know how to tell if the fault lies within the cholorinator or the salt cell? The cell has 4 plates and two of the plates stay clean whilst the other 2 plates...
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    Chlorinator creating sparks

    Hi Our chlorinator is creating sparks when it's switched on. It's quite clear that the plates make contact with each other when water runs through them. Is there a way to keep the plates apart? Thanks
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    Gap in coping joint?

    Hi Our pool is fairly old and I've noticed over the years that it has never overflown. There is what appears to be a gap in the joint between the tiles and the coping all around the pool. But I'm not certain if it's indeed a gap or if water is really leaking through there. Anyone know if...
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    Brown cloudy water after backwash

    Hi For the past 2 days, our pump is pumping out brown cloudy water into the pool after each backwash. However, this lasts about 20 seconds. Does anyone know what might be causing it? I'm not sure if it has to do with the chlorine grains from 2 weeks ago, as we did a shock then. But why would...
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    Do check valves usually lock air in?

    Hi I'm going to be installing a check valve to help our pump keep prime. When I shut off the pump, I hear a "shhh.." sound and see leaves under the lint cover get sucked back into the suction line. Then the water under the cover lowers to about just 2cm. I'm guessing I might need to trap the...
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    Installing a check valve with compression coupling

    Hi Our pump has been losing prime for many months now and we have failed to identify the cause of it. We suspect it may be the return line that's leaking air. Our current setup has no valve at all and I've read that a check valve on the suction side can help the pump prime. I happen to have a...
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    Pump losing prime - Faulty MPV?

    Hi Similar to my previous post, my pump has been losing prime when shut off for the past few months. Each time when the pump is shut off, I can hear a gurgling sound in the (top mounted) MPV and it takes 2s-4s for the water in the pump to go almost all the way down. I've now noticed that if I...
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    Pool driving us nuts. Now leaking.

    Hi We've been having quite a few issues with our pool recently. We've been losing prime at the pump and losing water. I'll leave the pump issue aside for now since the water loss costs us a fair bit where we are ($4 per kL). Our 8m x 6m pool had been suffering a rapid leak and we had lost...
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    Pump loses prime right after shut off

    Hi Our pump has been losing prime right after shut off for a good few months now and I can't seem to figure out the cause. When the pump switches off, it takes just a few seconds for the water to go all the way down. Before the water goes down, I can hear what sounds like water blasting inside...