2. check the chlorine and ph value of the water from the hose next to the pool. I found that the water in the pool and the water out of the pipes with chlorine and ph values do not differ.
2. Check out the chlorine and the ph of the water out of the pipes at the poolside. The water in the swimming pool and water out of the pipe with the chlorine and the ph is different.
2. Detection of chlorine and the pH from water from pipe beside the pool The water in the swimming pool, and found that the water out of the pipe, the chlorine and the pH no different.