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No need to be scared of gas cylinders, just respectful of them ... which I think is what you're doing. Yes, carb with 70/30 (the "convention" is perhaps to put the CO2 first ... so, it's 30/70?) and serve with 30/70. Rules of "Partial Pressure" means if the gas is at 32PSIG (sorry ... that's...

@Larse, I'm surprised, you are usually more cautiously correct about this gas caper: If you use one gas (CO2) to carbonate, and another gas as a propellant, the other gas dilutes the gas in the keg, and the carbonation (CO2) in the beer falls away likewise. Laws of "Partial Pressure". Always...

There is confusion about this "is it CO2 or mixed gas"! What is "Kegland" playing at? The Mk.4 is capable of handling very high pressure, such as in a "mixed gas" cylinder. It will or course handle the much lower pressure in a CO2 cylinder. Different nuts for different cylinders are only to...

Hair-splitter. 🧌 The keg/whatever is on the floor. (I'm not sure about the "Troll" "smiley" on this forum ... it looks like it's up for some cross-dressing, or does it have man/troll ****s?).

(I'll accept Paypal? ... )

It won't leak then: Says the cock sure, bigoted git that I am. Place your bets now please ... the ball is rolling.

As @Larse says. Occasionally, the difference in pressure 'tween the empty cylinder and "bus line" ("back-pressure") will fail to keep the bus-line sealed; but the regulator isn't working as intended (cylinder is empty), and these regulators aren't precision devices, then the bus-line may drop to...

Cor ... what a popular thread! I've got to have something to say in this! And as you well know, my ideas are always at odds with everyone else! And ... I really don't like cheap tacky Kegland stuff! And ... Well, I'm not going to pick the "hideous" red thing then? Wrong! Hate to admit...

Oops, "A***-about-face". I've got the big loopy thing to send you. You've got the little loopy thing (Angram won't completely let go of their Northern roots) to send me. @MashBag: I've fetched it from field to have little loopy thing attached ... so hard-luck. (And the post office said they...

That explains it! @Larse: I did check ... honest! Moderator: Ignore my previous ramblings, this second rambling thread could be incinerated now? (Here! What do you mean "all my threads are rambling"?).

I knew you'd say it was "new" so can't be that. So was ready for you! It is that! Though could be something your end: Sucked up some debris that's jamming the valve open? But I've not [EDIT: Oops!] heard of such a thing. Returning might be awkward if eBay? I know RLBS (their Gresford warehouse...

Moderator: What you done? I've answered the original thread, but this copy has sprung up without my answer.

Haven't looked at the videos, but you said quite enough in the text. [EDIT: Have looked at the videos now!] There is nothing wrong. But you might misunderstand the workings? [EDIT: You've no need to understand the "workings", it's not the pump, it's the "demand valve"!] First off: I don't...

You think? An electronic TDS meter is a great tool for noting a variation. The "TDS" is actually the electrical conductivity multiplied by a "factor". The "factor" is accepted to be 0.65. In reality it could be between 0.5 and 1.5 (or something like that). After pH prediction I think you've just...

Thanks @Hazelwood Brewery! Me head's so heavy now the table's broke.

This is talking about the distribution of hydrogen ions and the measurement of "pH". It's so heavy I can't lift me head off the table just thinking about it. There's no direct relationship with "CaCO3" and pH, but there are ways of roughly predicting pH. That's what the DIpH stuff is about … the...

Coo ... if it was so easy! But the creating Calcium Bicarbonate solution method should be sound. Don't exceed the maximum solubility of Calcium Bicarbonate though … whatever that is.

I think what's being suggested there is just allow the 380-400ppm CO2 in the air to naturally dissolve in the water and go on to create the Calcium Bicarbonate with the chalk that's been added (and is sitting on the bottom). I've no idea how long that would take, many times slower than applying...

Phew, you pick out the hard ones! Changing all this "buffering" caper into "pH" is a step to far for me. It's mind numbingly complicated. That's why all this "RA" nonsense became so popular … except that is all it turned out to be … nonsense! There's been some pharting about with this "DIpH"...

It shouldn't be too critical? The CaCO3 will be happy to take on extra CO2 wherever it can find it (and then dissolve!). Great stuff this chemistry lark … at school I was only interested with how big a bang I could make. Worryingly, I then went on to be an explosives technician! Still, I've...