Reply To: Can/Should I use check valve before a “P” trap on my washing machine?< Home › Forums › Public Forums › General Plumbing › Can/Should I use check valve before a “P” trap on my washing machine?< › Reply To: Can/Should I use check valve before a “P” trap on my washing machine?< 21 Nov 2003 at 11:53 pm #295418 Retired plbg1Participant Cut the Y out and put in new one and roll it up with a fitting and connect washer. Dont put in a check valve you are asking for more trouble.
