AIR IN DOS CANT STOP IT.

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Has anyone ever found a permanent fix to air in the lines ? I believe it comes from the ddr fittings.
Looking for some new ideas , thanks.

 

[leepink23]

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

 

[180large]

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

 

[180large]

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

Has anyone ever found a permanent fix to air in the lines ? I believe it comes from the ddr fittings. Looking for some new ideas , thanks.

Has anyone ever found a permanent fix to air in the lines ? I believe it comes from the ddr fittings. Looking for some new ideas , thanks.

 

[180large]

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

Has anyone ever found a permanent fix to air in the lines ? I believe it comes from the ddr fittings. Looking for some new ideas , thanks.

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

Has anyone ever found a permanent fix to air in the lines ? I believe it comes from the ddr fittings. Looking for some new ideas , thanks.

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

1/8" Female NPT X 1/4" Push Connect Adapter

This John Guest Female NPT x Push-Connect Adapter can be used to adapt any 1/8” male NPT threaded plumbing to 1/4” push connect, and is perfect for converting your Neptune Systems® DOS to accept standard 1/4” RO tubing. This adapter can be used to replace the compression fittings on the DOS...

www.bulkreefsupply.com

Have you tried these?

No I have not. I don’t think the air is coming from there , I think it’s from the ddr connections that use the same fittings as you described.
When I attempt to unscrew ddr fittings on #2 the acrylic tube spins with it.

 

[leepink23]

No I have not. I don’t think the air is coming from there , I think it’s from the ddr connections that use the same fittings as you described.
When I attempt to unscrew ddr fittings on #2 the acrylic tube spins with it.

Ahh gotcha. That’s possible, never had mine leak with those types of fittings but maybe someone with a DDR can chime in. The DOS is notorious to have air leaks at their connectors as well.

 

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Thanks for your input