Hello, I've been a lurker in here and appreciate all of the knowledge that has been so helpul., first time posting. I have read what I could find on sheer waterfalls but none of the fixes helped mine. I have a new pool with a 6' sheer that puts water out about 13" on one end, and about 8" at the opposite end. Maybe that is within tolerances, but I don't know. In order to try to equalize the sheer, I've used the cleaning tool, as well as spraying a mix of acid and water in the output to no avail. In addition, the pool plumber cut the line open on the outside of the pool and shop vacuumed the pvc pipe in case there was something in there. That didn't work. He also took out a couple of 90 degree couplings in the water line in case that was causing the problem. None of the fixes yielded any results. The sheer has it's own pump and the only other things on the pump are a couple of deck jets that don't affect the flow of the scheer when off or on. Any thoughts are appreciated.
Sheer not consistent
- Thread starter hoodietwoshoes
- Start date
-
- Tags
- sheer waterfall waterfall
- Jul 21, 2013
- 52,861
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Welcome to TFP.
Have you put a level on the sheers? Is it perfectly level?
@AQUA~HOLICS @1poolman1 ideas?
Have you put a level on the sheers? Is it perfectly level?
@AQUA~HOLICS @1poolman1 ideas?
Charlie Bezzina
Well-known member
- Jul 10, 2021
- 176
- Pool Size
- 38000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-9)
The long sheers I have seen have 2 water entries (one either side) in order to get sufficient flow. I can imagine that if one of those entries was blocked accidentally, or blocked/disconnected/not used purposely then you would probably get more flow on one side.
Was it plumbed correctly?
Was it plumbed correctly?
How was the sheer decent plumbed on the supply side directly to the sheer?
Did it have 3 , 2 or 1 supply ports?
How the manifold is plumbed has a direct impact on the amount of flow and its uniformity of water that exists the sheer.
I have seen plumbers run a 18” strait pvc pipe past the last return line when the system is not looped in order to get the same pressure on that last return as the first return, I’m not sure if this would provide the added pressure needed to make the sheer even on both ends but i have seen this work on return lines.
Did it have 3 , 2 or 1 supply ports?
How the manifold is plumbed has a direct impact on the amount of flow and its uniformity of water that exists the sheer.
I have seen plumbers run a 18” strait pvc pipe past the last return line when the system is not looped in order to get the same pressure on that last return as the first return, I’m not sure if this would provide the added pressure needed to make the sheer even on both ends but i have seen this work on return lines.
My sheer has three waterfalls. Each has its own pipe to the pump. The three pipes are joined together via two 3-way valves to the pump. This allows the control of flow to each waterfall. I had to adjust the values to get the flow to be even amongst the three.
About 1/4" out of level on the side that is short.
Attachments
- Jul 21, 2013
- 52,861
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Yes it is plumbed directly to the sheer. I'll have to verify with the pool builder, but if I recall correctly, there was just one supply, it looked like the attached photo.
Attachments
As the pipe leaves the pump, it is split to three different pipes. Two pipes that to individual deck jets and have Jandy valves, but the sheer has no valve. When the deck jets are fully open, they will each spray about 20' in the air and as I adjust them down to no flow, there is zero effect on the flow of the scheer.
What happens if you block middle portions of the sheer? Does the water arc length increase?
It does increase, but the overall shape stays the same, in other words, the the side that has a shorter output is still shorter than the longer output side although they both go out a little farther.