We had this discussion recently in another thread. Mixed reviews. Me personally, I have always used a regulator (separate from my fresh water regulator) just to make sure I am not introducing too much pressure into the RV water lines. JMHO
Darrell, Mary & K.C. Toller Mix
In our hearts: Goldens, Tess & Jericho
'15 Jayco Precept 31 UL "Bertha"
'13 Wrangler Sahara...AKAFUN
Roadmaster base plate
Ready Brute Elite towbar and brake combo