I opened my pool mid May. Water was clear with a slight green tint. Nice carpet of algae on the bottom. Vacuumed to waste and added bleach. Only had the little 2 regent tests from the store. Successfully brought the whole pool to a beautiful crystal clear in 3-4 days. Kept it that way for about a month. Torrential rains and then heat came, got busy and slacked off. Noticed a slight green tint one day and thought I hit it hard enough with bleach. For the last week it's continued to get greener and greener no matter how many bottles and how often I add bleach. Of course, without a proper test kit, I am operating by the seat of my pants. I KNOW that doesn't work. So I'm hoping the test kit will be here mid week at the latest. What should I do in the meantime? The pump has been running non stop for at least 3 days and this morning my husband told me to turn it off until he can get something from the pool store that we used last year called Swamp Treat. Any suggestions?