Tank Overflow - higher than pump rate
- Thread starter fishnerd1
- Start date
golfish
Active Member
Originally posted by fishnerd1
If my over flow is 100gph higher than my sump's return pump, will this be a problem? Obviously you want the overflow higher than the return pump, but will a large difference matter?
shouldn't be a problem but you'll want to have a ballgate vale installed inline just to be safe.....
squidd
Active Member
Are we talking pump and over flow "ratings" or actual flow once the head, line, elbow and outlet restrictions are figured in...??
If it's just "ratings" and say you have a 600 gph "rated" overflow and a 500gph "rated" pump..by the time the water hits the tank your probbly only getting 350....
If the flow is too slow..you may have problems with bubbles building up in a HOB overflow (not fast enough to push them through...) If it's a drilled tank, you won't have that issue...
I have no use for ball valves on return pumps..:nope:
If it's just "ratings" and say you have a 600 gph "rated" overflow and a 500gph "rated" pump..by the time the water hits the tank your probbly only getting 350....
If the flow is too slow..you may have problems with bubbles building up in a HOB overflow (not fast enough to push them through...) If it's a drilled tank, you won't have that issue...
I have no use for ball valves on return pumps..:nope:
chainsaw5vent
Member
just make sure that your "outage" (low level of tank) is less than what your sump can hold.
i.e. if your low level is minus 20 gallons, and your sump's normal level is 15 gallons, you would need a total sump capacity of 40 gallons minimum (35 gal + 5 gal error factor) to also be prepared for the occassional power outage also.
the gate/ball valve on the overflow line is also a good idea to help regulate the total flow going into the sump.
i.e. if your low level is minus 20 gallons, and your sump's normal level is 15 gallons, you would need a total sump capacity of 40 gallons minimum (35 gal + 5 gal error factor) to also be prepared for the occassional power outage also.
the gate/ball valve on the overflow line is also a good idea to help regulate the total flow going into the sump.
dburr
Active Member
the gate/ball valve on the overflow line is also a good idea to help regulate the total flow going into the sump.
Welp, I hope all the water goes to the sump or their will be a puddle on the floor.
A ball valve will regulate the air/toilet noise but do not use it to adjust the amout of water going to the sump. Just wanted to clarify.
Welp, I hope all the water goes to the sump or their will be a puddle on the floor.
A ball valve will regulate the air/toilet noise but do not use it to adjust the amout of water going to the sump. Just wanted to clarify.