Aqua Rite pro pH control

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Steve_G
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My Pool: Waterair, 50,000 liters. 9mx5m. Cartridge filter. Hayward Aqua Rite pro salt/chlorine generator

Aqua Rite pro pH control

Postby Steve_G » Sun 05 May, 2024 10:32

Hope this is in the right section!
I have an automated pH control linked to the Hayward Aqua Rite. If I use a pH 7.0 buffer to calibrate the probe, I reads 7.6. If I adjust it down by more then 0.2 and confirm the setting (using the calibration wizard in the Aqua Rite) I get an error light and pH calibration error message.
I am trying to contact Hayward, but has anyone come across this as well?


Teapot1
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My Pool: 12000 gallons vinyl liner,

Re: Aqua Rite pro pH control

Postby Teapot1 » Sun 05 May, 2024 13:15

Probes do wear out, so hopefully you'll hear back from Hayward.
If you lower your Alkalinity to 50-60ppm you wont get pH rises.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.
Steve_G
I'm new here
I'm new here
Posts: 3
Joined: Sun 05 May, 2024 10:25
My Pool: Waterair, 50,000 liters. 9mx5m. Cartridge filter. Hayward Aqua Rite pro salt/chlorine generator

Re: Aqua Rite pro pH control

Postby Steve_G » Wed 08 May, 2024 09:33

I don't think that the probe is too bad. It does respond to pH change. All attached meters (and the Aqua Rite is doing that in this case) need calibration. It adjusts fine in the setup system, but then generates faults if the calibration goes beyond a certain amount. Hope Hayward get back to me, if it does need a new probe they're expensive!

Hard to get alkalinity low, I live in a very hard water area. In any case, the electrolysis causes a slow rise in pH so I do need to check and adjust, just the auto system makes it easy!
Teapot1
Pool Industry Leader
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Posts: 1248
Joined: Thu 29 Apr, 2021 00:43
My Pool: 12000 gallons vinyl liner,

Re: Aqua Rite pro pH control

Postby Teapot1 » Thu 09 May, 2024 02:26

Steve_G wrote:
Hard to get alkalinity low, I live in a very hard water area. In any case, the electrolysis causes a slow rise in pH so I do need to check and adjust, just the auto system makes it easy!

Please dont confuse hardness with alkalinity.
The water in my area is also very hard and high in alkalinity. I have however reduced the alkalinity to around 50ppm and havent used any pH down in years. I have set up a test rig years ago along with some others trying this around the world and we know low alkalinity will keep the pH far more stable than the industry stated values that attempt to buffer the pH around 8.1, great for sales of pH-.
Hope Hayward get back to you and if you would be kind enough to let us know the result.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.
Steve_G
I'm new here
I'm new here
Posts: 3
Joined: Sun 05 May, 2024 10:25
My Pool: Waterair, 50,000 liters. 9mx5m. Cartridge filter. Hayward Aqua Rite pro salt/chlorine generator

Re: Aqua Rite pro pH control

Postby Steve_G » Sun 12 May, 2024 04:21

Still no reply from Hayward.
However have been trying a few things and come to the conclusion that the probe is not working within parameters. So time for a new one or revert back to manual checking!

The water round here runs through jurassic limestone, so high in carbonates etc. I have made efforts to get the levels down and seem to have succeeded; just had an analysis done and comes out at 58ppm. I won't try to increase it as advised by the pool shop.

Will update if Hayward get back to me.
Teapot1
Pool Industry Leader
Pool Industry Leader
Posts: 1248
Joined: Thu 29 Apr, 2021 00:43
My Pool: 12000 gallons vinyl liner,

Re: Aqua Rite pro pH control

Postby Teapot1 » Sun 12 May, 2024 15:03

That should help stabilise the pH, now fingers crossed for Hayward.
Have you tried a gentle clean of the probe, I was once told by a manufacturer to stand a pH probe in strong cold coffee for a few hours and brush lightly with a toothbrush (the wife won't mind ).
Or it could have been clothes detergent but I think that was for ORP probes.
I may not give you the answer you want to hear, but I will give an honest opinion of your situation as you decribe it.

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