MSJulian,
Thank you for your response.
I have tested the water throughout the day so far and it remains at FC 5. So I must have made some error when taking the reading the other day.
As you stated it still might be too high, although I have read others responses that those with SWGs and FC at 5 have no such problems. It also might be that keeping the pool cover on for a long time causes the chloramines to get trapped in the water. In addition my pool cleaner works off my pump so I have to shut down the skimmer to 20% flow to get it to work, that to might be a problem. To many chloramines trapped under the blanket and not removing them at the surface. Darn now I might need an Aquabot. To think possibly I have been swimming in chloramine infested water, now I need to bathe myself in UltraBleach. In addition 88 F might also be contributing to the problem as chloramines escalate at higher temperatures. Now I need a darker skinned pool cover and finally a loan.
Please see these interesting discussions here:
http://www.alisonosinski.com/pooltips/53.htm
http://www.alisonosinski.com/pooltips/58.htm
So with these two ideas, yours and mine, I will conduct two tests; I will remove the pool cover and see if it helps to release the compounds to the air, if that does not work I will lower the power on the SWG to one and also reduce the ORP to 650. In Germany they want 750 (nearly impossible in an outdoor pool) but 700 is possible.
I will post the results as soon as I can. Your help was thought provoking and made me research further, thank you.
Finally as a word of caution to people with ORP controllers see here:
http://www.poolsolutions.com/gd/chem_never.html
"If you use monopersulfate shock (Oxone based) on a pool with an ORP based controller, you can end up with NO chlorine in your pool, just monopersulfate. And monopersulfate is NOT a sanitizer."
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