Overflow antisiphon
- Thread starter 6stokes
- Start date
bang guy
Moderator
Squidd stole my line... LOL
The way to prevent flooding is to have two overflows, each able to handle the full load.
Other than that, it's pretty difficult. There's a balance between the size of the sump vs how full to keep the sump vs how much sump you need in case of a power outage.
External pumps tend to handle low water better than internal.
Internal overflows tend to fail less often than hang-on overflows.
The way to prevent flooding is to have two overflows, each able to handle the full load.
Other than that, it's pretty difficult. There's a balance between the size of the sump vs how full to keep the sump vs how much sump you need in case of a power outage.
External pumps tend to handle low water better than internal.
Internal overflows tend to fail less often than hang-on overflows.
shanev
Member
If you have an expensive pump, and you would like a little backup you can also run a float valve. You can set most float valaves to turn off the pump when the water gets bellow a certain level.
AS this provides some insurance, keep in mind that float valves can and do get stuck, therefore dont always work.
AS this provides some insurance, keep in mind that float valves can and do get stuck, therefore dont always work.
nitram
Member
Say you have the hang on the back overflow box and the power cutts off, the water will cotinue to siphon untill the overflow box is empty, then a hour later the power cutts back on, so your at work and not at home your sump pump kicks back on and runs untill the refug is empty and your pump continues to run and run and run and then it burns out, How do you keep this from happening how does this float valve work and were do you install it at?
bang guy
Moderator
Originally posted by NITRAM
Say you have the hang on the back overflow box and the power cutts off, the water will cotinue to siphon untill the overflow box is empty,
That's not how overflow boxes work. Once the water level is below the lip of the box the siphon stops. When the water rises again the siphos starts working again.
B
brigmanj
Guest
Just get the CPR silent overflow box, lift pump, and filter. Works great and is super queit on my setup. I use 2 1400gph versions on my setup. And about the power issue just make sure that you have enough area in your sump to take the overflow from the tank.
Or the expensive way, get a generator. I live in FL and I found a use for the generator after this hurricane season. LOL
Or the expensive way, get a generator. I live in FL and I found a use for the generator after this hurricane season. LOL
nitram
Member
I have a small problem with my overflow box,I have a leak in side the tubbing. When you fill the box on the back of the tank it will drain down to the sump area around the bottom of the drain tubbs I put the black washers on the outside of the box. re they supose to be on the inside on the female side or like I have it on the male side. or are ther supose to be two washers, one on the outside of the box and one on the inside. If I have a power outage I will lose my siphaling because it drains down past the u shaped tubing so thats not good please help if you can. here is a pic I drew.
squidd
Active Member
Rubber washer goes on the .EDIT:" INSIDE"...over the male end,,,then "snug" the lock ring in place...
If you tighten it too much it can distort the washer and cause a leak...or you may even "crack" the lock ring, causing it to not "seat" properly...
Best bet would be to take it apart, inspect for cracks, rips or wrinlles and reinstall "snug/firm" but not cranked down tight...
As far as the inner box, run it as high as you can on the inside to minimize the water draining out...(with in the limits of proper opperation)...
As far as "will your sump hold it all..?"....That's pretty much a try it and see type opperation...(keep the towles handy)...you might need a bigger sump...
The "easy" way to do this is...fill the tank as high as the overflow will let it go...then fill your sump as high as you feel safe with (power out) ...and then turn the system on...
Hopefully the "extra" water in the sump is enough to get the siphon going, the tank to proper level and still have enough in the sump to cover your pump...
If you need to add water after you start the unit..."that's" how much will spill out when the power goes out, or that's how much bigger your sump needs to be..
If you tighten it too much it can distort the washer and cause a leak...or you may even "crack" the lock ring, causing it to not "seat" properly...
Best bet would be to take it apart, inspect for cracks, rips or wrinlles and reinstall "snug/firm" but not cranked down tight...
As far as the inner box, run it as high as you can on the inside to minimize the water draining out...(with in the limits of proper opperation)...
As far as "will your sump hold it all..?"....That's pretty much a try it and see type opperation...(keep the towles handy)...you might need a bigger sump...
The "easy" way to do this is...fill the tank as high as the overflow will let it go...then fill your sump as high as you feel safe with (power out) ...and then turn the system on...
Hopefully the "extra" water in the sump is enough to get the siphon going, the tank to proper level and still have enough in the sump to cover your pump...
If you need to add water after you start the unit..."that's" how much will spill out when the power goes out, or that's how much bigger your sump needs to be..
squidd
Active Member
Originally posted by NITRAM
...,I have a leak in side the tubbing. When you fill the box on the back of the tank it will drain down to the sump area around the bottom of the drain tubbs ...
Are you saying it leaks "inside" the drain line (past the standpipe, but inside the drain line...??)
Add a couple wraps of teflon tape to the male end of the standpipe where it threads into the bulkhead...
If it leaks "outside" the drain line...see post above...
tony detroit
Active Member
Washers must be on the same side as the water. The teflon tape won't help in this situation, but does help in standard plumbing connections.
nitram
Member
I can see how that the washer would work better on the inside.I bought my overflow box from that accution website that everyone goes to and the instructions with it said to put it on the out side. it is a good box though it has a double hose connection with preefilters. By the way squidd thats some nice pics you mad there.