Shock and SWG

[waterbear]

Sorry, I missed that the SWG was not turned on yet!

[OffTheDeepEnd]

Well, now I'm really confused or something. I decided to turn on the SWG just for kicks, and it did kick on for a few minutes, but then it went off again. Has anyone else seen this with their autopilot digital? It is set to power level 1, and I set it at about 30%. The word ON. came on, but then it says OFF. again. I did the test autopilot, and my voltage says it's 24V to the cell, which if I recall, is not good. The Check System light is not on, and I have no other indications that anything is wrong. The salt is about 2700-2800ppm (a smidge low), but other than that, nothing is wrong according to the system. Has anyone else seen this with their Autopilot? So far, I'm not having a good experience with the SWG

[nater]

That is normal operation. The cell will cycle on and off according to the % you have selected. I'm not sure of the cycle time, but for an example, if you have it on 50%, then in a one minute period the readout will say "on" for 30 seconds, and "off" for 30 seconds. If you are running above 50% all the time to maintain you CL level, I'd take the unit up one power level and reduce the % on time. That should help increase your cell life.

I would also add more salt to get to 3200-3400 ppm.

[nater]

Eric, I re-read the thread and noticed you've not posted any CYA values for your pool. I'd really stress getting this tested ASAP. When you have that number, you can use the best guess chart to know where your FC should be:

Stabilizer . . . . . . Min. FC . . . . Max FC . . . 'Shock' FC
=> 0 ppm . . . . . . . 1 ppm . . . . . 3 ppm . . . . 10 ppm
=> 10 - 20 ppm . . . . 2 ppm . . . . . 5 ppm . . . . 12 ppm
=> 30 - 50 ppm . . . . 3 ppm . . . . . 6 ppm . . . . 15 ppm
=> 60 - 90 ppm . . . . 5 ppm . . . . . 10 ppm . . .. 20 ppm
=> 100 - 200 ppm . . . 8 ppm . . . . . 15 ppm . . .. 25 ppm

You sound a little frustrated at this point. I was in a very similar situation several months ago so I'll add my .02 cents worth below....remember, POP (Pool Owner Patience) is the best thing you can add right now

If you find your FC is low according to your CYA, I'd use bleach to get the FC where it needs to be ASAP. This will stave off any potential algae problems. It will take several days for the SWC to get to a stable FC residual, especially if you're fighting a Chlorine demand.

Balance your water according to the advice on this forum (pH 7.2-7.6, TA 80-150, etc.) This will help keeps things under control while your SWC does its job.

Do you have the manual for the Autopilot? If not, you can find it on their website. I'd re-read it again just for fun.

In the meantime, crack open a coldie, and take a dip if your water's warm enough!

[tonyl]

Those best guess figures are fine for manually chlorinated pools but don't apply to SWG pools as the water through the cell is superchlorinated when the cell is energized as opposed to having the kill zone within the pool itself.

At least according to PoolSean and the AquaRite people.

I've had the AquaRite for several years now with CYA at 70-80ppm, chlorine 1-2 with absolutely no problems. No point in wearing out a $400 cell prematurely by increasing the chlorine higher than the recommended value of 1-3.

[OffTheDeepEnd]

Thanks a lot again for the responses. I'm planning on taking a water sample on Monday to get my figures until Ben's kit arrives. Hopefully then I'll be able to post some numbers. About the autopilot, I don't remember reading that the cell is on/off for periods of time, but I guess that would make sense now that I think about it. I thought the % meant that less of a charge was sent to the cell, but now I understand that a % of time makes more sense. You guys are lifesavers. In fact, it's 90 degrees out now, and the pool temp is 86, so it's time for a dip

[OffTheDeepEnd]

OK - I finally have some numbers, but I can't be certain as to their accuracy. I took water to the pool place, but they used the dreaded test strip But here it goes -

Total Alkalinity - 70
pH - 6.3
CYA - 120
CH - 290
TC - 3.8
FC - 3.8
Salt - 3200-3300ppm

Now, the chlorine #'s seem OK compared to my simple drop test kit, but the pH seems way off. I get around 7.0 with the drop kit compared to their 6.3. The alkalinity, I get about 100, they get 70. So which #'s do I believe? I have the SWG running now at about 50% at power level 1 just for kicks. Does anyone have any suggestions about my current readings and where to go from here?