Threw this litte gadget together, works great. Pressure is controled with ball valve so no damage to fins. Here's a parts list if anyone's interested. There's 5) 1/8" X 1/2" holes from the end of the nipple.
1) ¼” pipe cap
2) ¼” X 6” pipe nipples Ace Hwd.
2) ¼” couplers
1) ¼” ball valve male/female
1) ¼” nipple
1) ¼” X ½” bell reducer
1) ½” X ¾” bell reducer
1) ¾” nipple
1) ¾” pipe to garden hose connector Ace Hwd
1) ¼” pipe cap
2) ¼” X 6” pipe nipples Ace Hwd.
2) ¼” couplers
1) ¼” ball valve male/female
1) ¼” nipple
1) ¼” X ½” bell reducer
1) ½” X ¾” bell reducer
1) ¾” nipple
1) ¾” pipe to garden hose connector Ace Hwd