Neptune DOS Auto Water Change Plumbing Question

[Patrick Cox]

I am setting up auto water change on my new aquarium. My saltwater container is 43" high (40 gallons). My question is... what is the best way to plumb the 1/4" RODI tubing to get to the bottom of the saltwater container? The tubing is very "curly" so I can't get it to the bottom of the container. The only solution I could come up with is to use a uniseal to insert a 1/2" PVC pipe and then fish the 1/4" RODI tubing down through the PVC. Any better suggestions? Here is a work in progress picture of my containers...

Thanks!

 

[Bret]

I am setting up auto water change on my new aquarium. My saltwater container is 43" high (40 gallons). My question is... what is the best way to plumb the 1/4" RODI tubing to get to the bottom of the saltwater container? The tubing is very "curly" so I can't get it to the bottom of the container. The only solution I could come up with is to use a uniseal to insert a 1/2" PVC pipe and then fish the 1/4" RODI tubing down through the PVC. Any better suggestions? Here is a work in progress picture of my containers...

Thanks!

You’ve got a few options:
What I did was install a magnetic probe holder that has slots for the1/4” rodi tubing, set the probe holder at the bottom of the tank to keep the tubing straight and drawing from the bottom.

Magnetic Probe & Dosing/Ato – Great for Nano Smaller Aquariums | eBay

– Front Right Circle is a bit larger than 1/2″ to fit an apex temp probe. – Front Left Circle is designed for a 1/2″ probe. Magnets and saltwater is a tough combination. Our Magnets are epoxy coated as a first layer of defense.

www.ebay.com

Another option, which I would go with if I did it again since it’s a little cleaner/more professional, is to use rigid 1/4” tubing and a 1/4” pushlock bulkhead fitting. Install the bulkhead in the top of your tank, and run the rigid tubing straight down to your desired depth.

you could also put a1/4” bulkhead towards the bottom of the tank and run the tubing on the outside. This would be the easiest/cheapest solution if you have enough flat area on the tank to install the bulkhead, and can find a way to tighten it.

 

[Patrick Cox]

You’ve got a few options:
What I did was install a magnetic probe holder that has slots for the1/4” rodi tubing, set the probe holder at the bottom of the tank to keep the tubing straight and drawing from the bottom.

Magnetic Probe & Dosing/Ato – Great for Nano Smaller Aquariums | eBay

– Front Right Circle is a bit larger than 1/2″ to fit an apex temp probe. – Front Left Circle is designed for a 1/2″ probe. Magnets and saltwater is a tough combination. Our Magnets are epoxy coated as a first layer of defense.

www.ebay.com

Another option, which I would go with if I did it again since it’s a little cleaner/more professional, is to use rigid 1/4” tubing and a 1/4” pushlock bulkhead fitting. Install the bulkhead in the top of your tank, and run the rigid tubing straight down to your desired depth.

you could also put a1/4” bulkhead towards the bottom of the tank and run the tubing on the outside. This would be the easiest/cheapest solution if you have enough flat area on the tank to install the bulkhead, and can find a way to tighten it.

Thanks for your reply.

The magnetic probe holder sounds like a good idea. So I guess you just attach the tubing and then use the magnet from the outside to drag the holder to the bottom or the container?

And then do you know where to buy the rigid 1/4" tubing? BRS doesn't sell any that I can find.

Thanks!

 

[Patrick Cox]

I just found this. I think this will work with a coupling...

Rigid RODI Tubing

This hard 1/4" tubing that is 100% airtight with John Guest style push to connect fittings, it does not bend so is useful for situations when you need to make a perfectly straight run. It is sold in 18" lengths and if you need a longer section it can be joined together simply with a John...

www.avastmarine.com

Thanks