Giantvanman
MB Enthusiast
My TDS is between 304 and 316 and I have just started using the filter for everything….pre-soak, bucket fill and rinse off. I used to try and save the filter/lengthen the Tulson's life and use standard water for pre-rinse but I found that it was a little fraught on sunny days (having to rush) doing it this way. Filter it all and take your time…….and don't forget; you won't need as much shampoo to get a decent lather.