I haven't added any more dichlor because the SWG has been maintaining the chlorine level just fine without any help. But if it will lower the pH a little then I will give it another small dose. Unfortunately I do not have a CYA test.

Thanks for the dry acid suggestion. Buying a supply of muriatic would definitely be overkill; this is a seasonal pool and I really only need to get through the next five weeks or so. The water is already beautiful, so I just want to keep it safe and avoid doing anything that would wear down the liner so I can put it up again next year.