Anti syphon in my res help

[2cent]

My res is higher thsn the plants and it syphons it all off.
The non return valve seems to do noffing inline.

Can i run it off a tee in the air ad a air bleed for sypboning.

But will this give a shit ton of air into the sysyem lines?

 

[Saffasteve]

A non return or check valve only stops water flowing back towards the pump. If you have flexible line make a loop in it that higher than your high water level.

 

[TacoMac]

A non return or check valve only stops water flowing back towards the pump. If you have flexible line make a loop in it that higher than your high water level.

This.

The same thing happens to a dishwasher if people don't route the drain hose correctly. For a mental image, check this out:

 

[2cent]

A non return or check valve only stops water flowing back towards the pump. If you have flexible line make a loop in it that higher than your high water level.

Wont this reduce preassure of thr pump?

If i have a non return valve near the plants so it cant flow back.
And a hole at the highest point also with a non return valve aimed in going to nothing.

Thats will stop water sprsying out loosing preassure
But allow air back in whrn pump stops and backflow from plants isnt possble

Right?

[/img] https://rollitup.org/attachments/20201118_135904-jpg.4745588/?hash=032f2f00a64f79ea6b8368048ff91082

 

[2cent]

 

[TacoMac]

I think you're talking about head pressure. Head pressure is created the higher up a pump has to pump.

For instance, if you're pumping straight up 3 feet, then you extend that 3 more feet, you'll double the head pressure. That means your pump has to be stronger as it will have twice the force against it. (Gravity is a bitch, isn't it?)

What we're talking about here though isn't doubling your pump's head pressure. You just have to make sure that your loop is above the syphon line. If that results in your doubling your head pressure, then your setup was completely wrong from the word go. It shouldn't be that big a move and should have a negligible effect.

 

[2cent]

Ive been fine in my 40l tote its lower thn plants but now im in a 100l watervutt the water is double the plants pot height.
My pipe goes up and out and doen to pots halos.

But turn pump on and it wil drain till it is as same level

Just seen peeps running a bleed hole at the top point. But i cant afford water spraying up in the airwhen pumps active.

 

[Saffasteve]

Another alternative is to add a solenoid valve that is switched from the same power supply as your pump so when the pump turns on it opens and it switches off it closes

 

[BonsaiMaster55]

I add a drip tube, from the main feed line, draining back into the res. As long as this tube has access to air (not submerged) it will prevent a siphon. Been doing this for years no issue after this

 

[2cent]

Yeah this is what i mean.
Does it require liquid to seep out? Or that happen cause there is a hole. Is the action from air going in not out?

Wondering as if i put 1 way valve on the end of that it will stop water out but stil let air in
U got a pic of it in action hehe