My favorite topic - dosing pump tubing

[Alexander1312]

I have these three items - tubing size is an airline tubing.

How do I connect them with each other?

 

[SupraSaltyReefer]

Hose barbs. Something like this that fits the inside diameter of your tubes.

 

[Thọ Key]

I got this one for my set up

 

[Alexander1312]

Hose barbs. Something like this that fits the inside diameter of your tubes.

View attachment 80276

I got this one for my set up
View attachment 80278

Thank you - do you guys have links to this?

 

[gmdcdvm]

I think this scene is appropriate...

 

[Turkeysammich]

I’m ghetto. Cut some ro tubing or drip tubing. Squeeze the air line tubing over drip tubing. Small zip tie. Call it good.

 

[PjFish]

I’m ghetto. Cut some ro tubing or drip tubing. Squeeze the air line tubing over drip tubing. Small zip tie. Call it good.

A dip in boiling water first helps a lot

 

[PjFish]

Not sure what your dosing or if it's ato but make sure the tubing is rated for the chemicals so not to breakdown if so

 

[Qckslvr]

if you have an Outdoor supply or Ace Hardware (not HD or Lowes) they have really nice assortment of hose barbs. I have had good luck with Outdoor Supply.

 

[SupraSaltyReefer]

Thank you - do you guys have links to this?

Amazon.com: 22 Pcs Hose Barb Fittings Assortment,11 Sizes of Equal and Unequal Barbed Hose Fittings, Pipe Connectors, Joint Splicers, and Menders for Aquarium, Household, Fuel, Gas, Liquid, Air Hose Repair : Industrial & Scientific

Buy 22 Pcs Hose Barb Fittings Assortment,11 Sizes of Equal and Unequal Barbed Hose Fittings, Pipe Connectors, Joint Splicers, and Menders for Aquarium, Household, Fuel, Gas, Liquid, Air Hose Repair: Barbed Fittings - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

a.co

 

[Alexander1312]

So this is how this turned out.

Not sure if this is correct but will try.

Thank you for everyones help!

 

[Darkxerox]

Amazon.com: 22 Pcs Hose Barb Fittings Assortment,11 Sizes of Equal and Unequal Barbed Hose Fittings, Pipe Connectors, Joint Splicers, and Menders for Aquarium, Household, Fuel, Gas, Liquid, Air Hose Repair : Industrial & Scientific

Buy 22 Pcs Hose Barb Fittings Assortment,11 Sizes of Equal and Unequal Barbed Hose Fittings, Pipe Connectors, Joint Splicers, and Menders for Aquarium, Household, Fuel, Gas, Liquid, Air Hose Repair: Barbed Fittings - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

a.co

I still cable tie my hose barbs since the PVC tubing sometimes doesn't create a great seal and if you lose the suction, you could end up with air in the line leading to inaccurate dosing.

 

[Alexander1312]

So this is how this turned out.

Not sure if this is correct but will try.

Thank you for everyones help!

View attachment 80313

And this is not working. Incredible how difficult this is…very annoying.

It is not sucking the liquid from the container.

 

[Darkxerox]

And this is not working. Incredible how difficult this is…very annoying.

It is not sucking the liquid from the container.

Why are you using check valves? Just go tube to barb to tube.

 

[Alexander1312]

Why are you using check valves? Just go tube to barb to tube.

Thanks. My initial idea (not posted here) was to use the RO tubing I had on the previous pump, not the airline tubing. Will try it differently.

 

[Darkxerox]

Thanks. My initial idea (not posted here) was to use the RO tubing I had on the previous pump, not the airline tubing. Will try it differently.

Either the icecap container or the pump should have come with the hose barbs in the box. Just be sure to cable tie the connections with tiny cable ties like I mentioned.

 

[Alexander1312]

The drama continues. 5 more days until my vacation and Ca Dosing on the nano tank is still not working.

I was able to set it up, primed it, calibration was spot on 2ml/min.

However, the liquid does not stay in the tubing and it seems to go back into the container after a while. So when it doses again there is nothing in the tubing and it takes some time until it pumps it back up all the way.

What could be wrong?

 

[Darkxerox]

The drama continues. 5 more days until my vacation and Ca Dosing on the nano tank is still not working.

I was able to set it up, primed it, calibration was spot on 2ml/min.

However, the liquid does not stay in the tubing and it seems to go back into the container after a while. So when it doses again there is nothing in the tubing and it takes some time until it pumps it back up all the way.

What could be wrong?

You're losing your siphon, either your tubes are letting air in on the barbs and you need to cable tie them, or your connection from the dip tube in the container is cracked and needs to be sealed with acrylic glue.

 

[Alexander1312]

You're losing your siphon, either your tubes are letting air in on the barbs and you need to cable tie them, or your connection from the dip tube in the container is cracked and needs to be sealed with acrylic glue.

Ziptied everything, replaced the container. It still seems to siphon. Could the issue be with the tubing opening where the liquid is dispensed into the water?

 

[Darkxerox]

Ziptied everything, replaced the container. It still seems to siphon. Could the issue be with the tubing opening where the liquid is dispensed into the water?

View attachment 80426View attachment 80427View attachment 80428

Make sure it's sealed well on the connection on the inside of the container with the dip tube. If it's cracked or not glued, it could break the siphon: