Pool Pilot Total Digital ORP Calibration and Maintenance

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I think this question is for Sean.

Firstly let me state that we are extremely happy with the unit it seems to perform exactly as hoped for. The manual however could be more clearly written.

On our PoolPilot Total Digital how is the ORP calibrated?

When I initially installed the units two days ago, the pool read as follows (mostly Taylor liquid tests):

Temp 82
FC 6
pH 7.5
Ca 375
Alk 90
cYA 42
Borate 50
Salt 3200

The question is does the ORP unit self-calibrate or should one of these readings be different to calibrate it correctly? I noticed that some manufacturers have calibrating solutions and specific instructions to do this, as far as I can see from the manual there are no specific instructions. So I am not sure if I am getting the correct ORP readings.

Finally after scouring the internet it seems that ORP and pH sensors are best cleaned bi-weekly to get correct readings. Is this too often? What would Autopilot recommended? The manual only states periodically this is a little vague.

The Stenner pump requires maintance, there is a good YouTube video of how to replace it here ( I hope this might help others):

www.youtube.com/watch?v=KNNC5-R4wpg

and Stenner's own website video here:

http://www.stenner.com/AOP-Tube-Replacement.htm

Here they supply instructions and a service kit:

http://www.stenner.com/download/CIMM2008_P.pdf


After viewing these videos I am not sure how we would get the pump to rotate as they are hard wired into the controller. I suppose we could always use "prime pump" and turn it off.

Looking forward to your reply.