Tried mine yesterday...worked like a charm!!
Not sure if my liquid post is different, but I had to use different brass fittings...
Using the same sprayer as the OP:
3/8" FIP to 1/4" FIP (home depot part A-765)
1/4" MIP brass nipple (part A-740)
Not sure if my liquid post is different, but I had to use different brass fittings...
Using the same sprayer as the OP:
3/8" FIP to 1/4" FIP (home depot part A-765)
1/4" MIP brass nipple (part A-740)