5 Simple Techniques For lifeguard vs attendant training

JamesW claimed: Which has a swg and a ta of 80, there is no basis for the ph to be very low. Perhaps he's not reading through the ph correctly. A swg is generally ph neutral. I by no means have to boost or decreased the ph with a swg pool after the ta is appropriate.Interestingly plenty of, it isn't even day time when you can get rid of probably th

read more