Co2 Just Been Dumped....

[chr15_8]

into my tank

was doing my water change (a day late as ive been really busy) meaning i havent checked co2 for 3 days also meaning i havent dosed friday's or sunday's dose of of ei

just cleard out a 14 litre bucket full of polysperma checked my drop checker and it was bright yellow! looked at my co2 and there non left and was just below 50bar maybe 47-8 when i last checked (ive heard someone say to change it when it get to around 50) and ive just paid the price

luckly i havent found any dead fish i was also doing my 50% water change so just filled up with more water and added to air pumps totaling to 308 litres per min so hopefully it will be fine!

just a word of warning

chris

btw pictures will be up in an hour

 

[Dave Spencer]

into my tank

was doing my water change (a day late as ive been really busy) meaning i havent checked co2 for 3 days also meaning i havent dosed friday's or sunday's dose of of ei

just cleard out a 14 litre bucket full of polysperma checked my drop checker and it was bright yellow! looked at my co2 and there non left and was just below 50bar maybe 47-8 when i last checked (ive heard someone say to change it when it get to around 50) and ive just paid the price

luckly i havent found any dead fish i was also doing my 50% water change so just filled up with more water and added to air pumps totaling to 308 litres per min so hopefully it will be fine!

just a word of warning

chris

btw pictures will be up in an hour

I think we need a banner at the head of this forum in bright red stating this fact. I know from experience that the JBL and Aquamas regulators dump the CO2 once the cylinder pressure starts to drop below 50Bar. Lucky for your fish that you were around when it happened.

Dave.

 

[SuperColey1]

shouldn't the needle valve stop this?

Andy

 

[Dave Spencer]

shouldn't the needle valve stop this?

Andy

It certainly should. The only thing I can think of is that the needle valve will have high pressure seals that actually nned the pressure for them to seal correctly. Once the pressure dips below a certain value the seals fail and the needle valve is effectively bypassed. There valves in the industry I work in that suffer from this, but on a much grander scale and are totally different designs, but it is all I can think of. I have come home to a reactor full of CO2 and have heard my filter on another tank, in to which my CO2 is diffused, lose its prime as it filled with CO2.

Dave.

 

[JamesC]

I've always thought the needle valve should prevent this as well. Must admit I've always waited until the bottle was empty before changing it. I've done this using 500g bottles, fire extinguishers and now 6.35kg pub bottles. I use a JBL reg and have never encountered any probs.

James

 

[chr15_8]

I've always thought the needle valve should prevent this as well. Must admit I've always waited until the bottle was empty before changing it. I've done this using 500g bottles, fire extinguishers and now 6.35kg pub bottles. I use a JBL reg and have never encountered any probs.

James

mines jbl and i use the 500g bottles

ive also heard that jbl's are the best regs etc? (i have one also)


if i was to get another needle valve could i just add it inline (further done the line from the jbl one)?

also the drop checker is slightly yellow but with a hint of green left air pumps on all night and day (also done another 20% water change an hour ago)

still no dead fish!

i have
40 neon tetra's
2 pepper corys
1 otto
3 flying foxes
5 kuli loaches
5 amano shrimp
4 red cherry shrimp
1 borneo (spelling) sucker

chris

edit: it seems my co2 reactor is very good as there was no co2 left in there (its a slightly modded version of zig's diy)

 

[BHornsey]

That's odd. I've got a Dennerle reg on a 6kg bottle.
Running pressure is usually about 50/60 bar.
Over three days last week the bottle pressure dropped as the cylinder emptied and I was surprised to note the delivery pressure rose steadily. Fortunately I spotted it and adjusted the pressure but it seemed contrary to what I wouldv'e expected.