D-D CO2 regulator rubber seal damaged - spare?

[nry]

Hi all,

Long time no see! Still going with the CO2/EI stuff on my aquarium

The D-D CO2 set I have has got a problem - the clear rubber seal that sits inside the regulator where the CO2 bottle screws in has split. I've tried using a cut down rubber washer instead but it just won't seal properly.

I've e-mailed D-D but no reply so far. Anyone got any suggestions on either a spare rubber seal to use or if not what's the cheapest place to get a new regulator? Can't afford a new D-D one, but I want to keep using the same size of disposable CO2 bottles - I also have the solenoid and needle valve etc from the D-D kit to use with something else if at all possible?

Cheers for your help,

nry

 

[Dolly Sprint 16v]

NRY

Pop down to Halfords or Wickes / B&Q - what you want is an "O" ring kit, I am sure they will be able to assit, i would try the DIY shops first.

Regards
Paul.

 

[nry]

Never thought of an O-ring, I got some rubber washers and cut them down, but they just mis-shape once I screw the cannister in and they fill the gap up so no CO2 gets to the regulator - I'll have a look tomorrow for a O-ring, cheers!

 

[gratts]

Yeah, just needs a new o ring, same happens occasionally with regulators for diving. Definitely won't be cause for a new reg!

 

[nry]

98p in B&Q and job sorted Never even thought of o-ring washers but they're perfect!

 

[Dolly Sprint 16v]

Ne bother - any time

Paul

 

[Mark Webb]

nry, how do you find your D & D CO2 unit? Do you have the Aquaponics Regulator? Cant get a steady flow of CO2 with mine.

 

[nry]

I don't have it anymore, but I never found a problem adjusting it. I don't think any of the 'cheaper' needle valves are the most accurate to adjust finely, even my newer eBay one from Malaysia is really awkward to adjust at lower bpm levels.

 

[Mark Webb]

Thanks

 

[Coiln3107]

Hi guys the best and only seal to do the job is a Dowty washer, an O ring only works when supported in a suitable machined seat. As we normally have 2 flat faces between the reg and the FE the O ring just gets crushed to a point that it can and will fail. Dowty washers are avaliable at any Hydraulic Hose repair shop or Plant Fitters.