JIMMIE wrote:
....

I came out the top of my water heater with street elbow and then
connected the traps. I hope this os OK.

If they're the check valve type they won't do any good in that
orientation because they're just a gravity check ball in a seat.

You can achieve the same effect w/o them by plumbing the inlet/outlet
lines in an inverted 'U' either by bending flex or tubing or w/ hard
copper/galvanized and fittings.

--