Rigid tubing

[alemone]

I need relatively rigid 1/4 tubing for my automatic water exchange system. It needs to be able to pump the water from the bottom of my 40 G container. Any suggestions?

 

[lapin]

https://www.amazon.com/Polycarbonat...=1551016720&sr=8-3&keywords=rigid+tubing+1/4"

 

[FishAndPhysics]

This should work:

https://www.mcmaster.com/53945K11

 

[alemone]

This should work:

https://www.mcmaster.com/53945K11

This is OD 1/4 inch. WOuld it work with regular RO fittings?

 

[mcgyvr]

Whats "relatively rigid"? Would cheap polyethylene tubing (commonly used in ro/di systems/ice makers,etc...) work?.
Its cheap and available at any hardware store/home depot

 

[FishAndPhysics]

This is OD 1/4 inch. WOuld it work with regular RO fittings?

Assuming you're referring to push-fit, no guarantees. It is the correct size, but those connectors rely on some teeth engaging with the outside of the tube. Any rigid tubing might be too hard for those teeth to engage well. I would use a plastic compression to compression fitting to transition to flexible RO line. https://www.mcmaster.com/5694T68

 

[slief]

What not use polyethylene RODI tubing? That’s what I use. For my RO and mixing tank, I take a large PVC fitting and drill a hole in it and shove a push lock John Guest fitting into the hole and put that at the end of the tubing in the container to weigh it down since I use 100 gallon holding tanks that are 5’ tall.

 

[alemone]

Whats "relatively rigid"? Would cheap polyethylene tubing (commonly used in ro/di systems/ice makers,etc...) work?.
Its cheap and available at any hardware store/home depot

It's shouldn't be curling up so it reaches the bottom of the plastic tank.

 

[alemone]

What not use polyethylene RODI tubing? That's what I use. For my RO and mixing tank, I take a large PVC fitting and drill a hole in it and shove a push lock John Guest fitting into the hole and put that at the end of the tubing in the container to weigh it down since I use 100 gallon holding tanks that are 5' tall.

That actually sounds like a neat idea.

 

[slief]

That actually sounds like a neat idea.

It's simple and works great.

 

[Vinny Kreyling]

Years back somehow I got 2 tubes of I think ceramic, & they are heavy, I use that to weigh down my hose.

 

[sayn3ver]

Could use rigid airline tubing as it comes in different diameters and lengths. Not sure how to convert over to a fitting however.

I think pex comes in 3/8".