Air in hydrominder hose

[JustClean]

Hi there,
I am a bit baffled with one of my hydrominders. My problem is this:

Over time the solution in the hydrominder gets weaker and weaker. First I changed to a bigger tip, then I discovered a slightly damaged footvalve that I replaced. I am still getting air into the soap hose (which I also replaced) that feeds the hydrominder. I have a dual ventury assembly with only one hose connected and the other side is totally sealed. Maybe I have a crack in the tubing or the connector that holds the tip so I would get air in. However, on the unit itself there is already a plug further up to let air in (any idea why?!?). When I move the soap hose a bit I can see bubbles coming up. Any ideas would be appreciated. Thanks

BTW while we are at it: Anyone knows what is the ring for that sits inside the hose that goes into the tank? Thanks.

 

[MEP001]

If you're getting air into the hose, the foot valve is bad or it's not sealing to the hose completely. There's no other way for air to get in the hose unless it's draining back.

The ring in the discharge hose is part of what makes it draw properly. I don't know how it makes a difference, but replace it with a piece of hose without it and you'll see that it won't draw right.

 

[Earl Weiss]

"Plug further up to let air in????

I am guessing as MEP said you still have a bad foot valve and what you see are bubbles coing up as fluid drains down.

 

[JustClean]

Thanks guys. It was AGAIN the welding on the new foot valve. You don't see it unless you squeeze it a bit. I am going now through all my valves. Maybe I can fix them with a bit of super glue.

 

[Jeff_L]

Not sure about gluing them, your chemical might eat through it. There are foot valves for harsher chemicals, I believe they are grey in color instead of the blue.

 

[MEP001]

Seems like this happens every few years, they have a batch with a high failure rate. I never thought to check the welds.

 

[WikiWash]

I have had the same problem. The last 5 foot valves I had to replace after a very short time, 1 to 2 months. I'm going to go check those duds and see if they are not completely welded or not. I never thought of that either.

Here's the link for the harsh chemicals
https://www.kleen-ritecorp.com/p-2128-blue-foot-valve-for-harsh-chemicals.aspx

 

[RAATCB]

Air in hydrominder hose.

If you're getting air into the hose, the foot valve is bad or it's not sealing to the hose completely. There's no other way for air to get in the hose unless it's draining back.

The ring in the discharge hose is part of what makes it draw properly. I don't know how it makes a difference, but replace it with a piece of hose without it and you'll see that it won't draw right.

I'm having the same problem. I notice little bubbles in my line. Will it be better to add a hose clamp to tighten more on the foot valve?

 

[2Biz]

I don't know if this will work for you, but I use the heavy 1/8" wall vinyl tubing for my pickup tube. It grips the foot valves much better than the thinner wall tubing. If I use a clamp, I use a spring clamp, not a standard hose clamp.

 

[WikiWash]

I don't know if this will work for you, but I use the heavy 1/8" wall vinyl tubing for my pickup tube. It grips the foot valves much better than the thinner wall tubing. If I use a clamp, I use a spring clamp, not a standard hose clamp.

I do the same. The trickiest part is putting the spring clamp on the tube end; using reversible pliers does the trick.