View Full Version : Hayward super pump 3/4 ?s
Messina1974
06-24-2013, 10:02 PM
Hello, new member not a spammer. I am having issues with to much pressure on filter gauge. Replaced impeller, problem still exists. I believe it may still be a motor issue, the reason is pump was left to run for days dry. Motor sounds fine impeller spins freely. Not sure if maybe motor is spinning at less Rpms or has lost some power. Everything ran fine this yr prior to the run dry incident. Wasn't sure if there was a way to bench test the motor itself. Thanks guys mike.
mas985
06-25-2013, 11:29 AM
When you turn the pump off, does the pressure gauge go to zero? If not, it could be just a bad pressure gauge. Tap it and see if the pressure changes. BTW, what is the pressure you are reading and what is it normally?
Induction motors either run or don't run, there is no in-between so it wouldn't be the motor causing the issue.
PoolDoc
06-25-2013, 12:32 PM
membership updated.
Do check the gauge . . . especially if you've used a salt system. I recently discovered that 99+% of the gauges sold into the pool market are NOT salt compatible.
drband
06-25-2013, 02:38 PM
So what kind of gauge IS salt compatible?
Thanks--
membership updated.
Do check the gauge . . . especially if you've used a salt system. I recently discovered that 99+% of the gauges sold into the pool market are NOT salt compatible.
BigDave
06-25-2013, 05:55 PM
How about: get a new gauge every year?
Messina1974
06-26-2013, 03:07 PM
well after more inspection of the pump housing I have found a crack. I welded it up and am hoping tonite when i reinstall pump that the problem is solved. I think the crack may have been sucking air and this may have been causing my probs. thanks so much for the insight great site. Unfortunately I'm sure i will have more ?s later thanks again
PoolDoc
06-27-2013, 09:33 AM
So what kind of gauge IS salt compatible? Thanks--
These are:
WIKA Industrial Pressure Gauge with Stainless Steel 304 Case and Stainless Steel 316L Wetted Parts (http://www.amazon.com/gp/product/B009Z1X5UW/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B009Z1X5UW&linkCode=as2&tag=poolbooks)
As long as you don't let them freeze with water inside, these will last indefinitely. They are also much more accurate than typical pool gauges. I'll try to get back to this thread and post specific gauge recommendations out of that list.
PoolDoc
06-27-2013, 09:34 AM
well after more inspection of the pump housing I have found a crack.
. . .
later thanks again
Glad you were able to solve your problem!