GHL Doser 2.1 Pipes popping off

[porter_painter]

I appreciate this happens with quite a few dosers, it used to happen to my old GHL doser infrequently.

However with my 2.1 doser it's a more than weekly occurrence, and not just the alk dosing line either. There no blockages, the pipes just work loose.

Is anyone else experiencing this?

I would love it if GHL came out with a better connector between the tubing in the doser and the lines you connect to it. Something like the vertex libra has.

 

[reefwiser]

I have happen once on one pump. I have 3 GHL dosing pumps. The fitting is standard for every dosing pump of this size. Might try a small wire tie and see if that would stop it.

 

[Support@GHLUSA]

Hmmnn. I don't think I've had this happen once.
What kind of tubing do you use?

The only way I can see this happening would be on tubing that's not the correct size, or where the elasticizers have released/leaked and the tubing no longer holds, in that case you wouldn't want to use said tubing anyway.

Personally I used vinyl airline tubing, and it hasn't let go once.

Could you please post a picture of how you have it connected, maybe a close up showing both tubing, connector and silicon tubing coming out of the head.

 

[porter_painter]

Thanks for the replies.

I've been using standard 6mm airline (not sure what they make it of!). I have always used this, even back to my aquatronica doser days (shudders ). I've never had such frequent incidents though.

I welcome recommendations for other tubing or where to source better connectors.

 

[techhnyne]

same happens to me and i am using the tubing supplies by ghl

 

[scottrotton]

Same is happening here did you find a fix

 

[AZMSGT]

I had this issue too, fixed it with Zip ties.

 

[reefwiser]

Always keep the lines going into the tank or sump clean I always checked the lines with a paper clip once a week. Any blockage or crimp in the line will cause back pressure.

 

[scottrotton]

Keeps happening on mine even with zip ties. Will try a new hose see if that works. My theory is the heat in my sump makes it expand and contract but never happen to my other dosers

 

[Ditto]

Can you take a picture, are you going to the top portion of the fitting? I have mine in an enclosed section also under my tank where it gets warm with the equipment and they do not pop off.

 

[scottrotton]

I bought new dosing hose, its PVC instead of silicon and hasnt fallen off yet, will give it a week and report back

 

[Henryb9]

Any fix for this? Happening even when I changed to different tubing?

 

[Lasse]

I had this issue too, fixed it with Zip ties.

I put my filter in the end of the tube - its always below the the waterline - no risk for leaks.

Sincerely Lasse

 

[Henryb9]

I put my filter in the end of the tube - its always below the the waterline - no risk for leaks.

Sincerely Lasse

Filter line is perfectly fine, it’s just the dosing tube lines that keep popping off less than 24 hours. First I had silicone and they lasted couple of days and now I put on vinyl tubing and they pop out within 24 hours. I put on zip ties, let see if that works.

 

[schaNYC]

Filter line is perfectly fine, it’s just the dosing tube lines that keep popping off less than 24 hours. First I had silicone and they lasted couple of days and now I put on vinyl tubing and they pop out within 24 hours. I put on zip ties, let see if that works.

did the zip ties work for you?

 

[Henryb9]

did the zip ties work for you?

No they didn’t, I just crazy glued it on the plastic tips.