Thanks both , might just say hell with it.
Tank size 125, but might use it on the 75, I see that I can get RODI at Walmart Food store place $.38 cents a gallon so $3.80 for 10 gallons plus the bottle price of $6.00 so another $12.00 , so I won't have to hook up my RODI unit , as the wife does not want me too.:moody: