While spaying is traditionally recommended for kitties between 4 and 6 months of age, spaying as young as 8 weeks old is considered safe, according to Cat Channel.
The national drinking water standards state that the maximum residual amount of chlorine is 4 mg/L. Untill recently the USA used chlorine gas extensively for wastewater treatment. Today, the use of chlorine has been forced back.
The recommended range for residential pools is 1 â 3 ppm (parts-per-million) of chlorine in the water. If pool chlorine level is too high: Pool surfaces and equipment damage. High chlorine can lower the pH of your pool water, turning the water more acidic. Acidic water will tend to corrode metal and concrete surfaces.