hi all, i changed myt resin 4 days ago but its reading 17 already, 38 before it goes into the resin when its usually 20. ive been informed its bcos the hot weather is affecting my filters allowing more dirt particles through. is this true and is any1 else having this problem? plus is there any easy way to keep my filters and water system cool as they are all bolted securly in my red hot shed??? any help please guys as i dont wanna use water with tds 15 to 20