Tiny but hopefully useful

[Caramel Ox]

I keep and dispense the acids in the garage now as it seems safer.

 

[MashBag]

Umm.... well not quite the vapour cabinet but yes with nitrile gloves... and with some of the powders like chemclean and calcium hydroxide I have been known to use an FFP2 mask. (just me then....).

Lightweight
I have a full face sundstrom with a cf32 gas cartridge.

 

[MashBag]

It's a mixture of hydrochloric and sulphuric acids. Murphey's have a data sheet somewhere on which they say that 35ml of AMS (CRS) per hectolitre will reduce alkalinity by 64ppm and increase chloride levels by 22.5 ppm and sulphate levels by 31 ppm.
You should be able to work it out from that

"Should"

 

[Agentgonzo]

What level of accuracy are people actually shooting for in their water treatment anyway?

I normally add 2-4g of calcium salts, probably with an accuracy of 0.1g.
And normally 3-6ml of lactic acid, probably with an accuracy of 0.2ml. both of these are quick and super easy (kitchen scales and Calpol syringe).

I would be very surprised if I could taste the difference in two batches 23L of beer, where the water additions varied by 1g of salts and 1ml of acid. So for me, good enough is good enough and I won't get any benefit from more accuracy

 

[An Ankoù]

What level of accuracy are people actually shooting for in their water treatment anyway?

I normally add 2-4g of calcium salts, probably with an accuracy of 0.1g.
And normally 3-6ml of lactic acid, probably with an accuracy of 0.2ml. both of these are quick and super easy (kitchen scales and Calpol syringe).

I would be very surprised if I could taste the difference in two batches 23L of beer, where the water additions varied by 1g of salts and 1ml of acid. So for me, good enough is good enough and I won't get any benefit from more accuracy

I agree entirely. I'm not even sure that a municipal water supply can maintain exactly the same level of salts and alkalinity day after day. Do we test the supply every time we brew? A megakeggery might, but I certainly don't.
Or is this about correcting the mash pH once the mash has started? Never done that, either.

 

[MashBag]

I too agree. But given that supplies can change, I test every brew (strips) but only for ballpark figures. I also test after to confirm.

I then add a glug of AMS after donning my NBC kit and snort the DWB and spit that in.

 

[aero-spaced-out]

My previous lab job where I was working with addition/dispense tolerances in the 10ths (and sometimes 100ths depending on the product) of a nanogram and nanolitre range that could ruin the batch of product has trained me into intensively focusing on the ensuring the numbers give the expected result.
Struggling to let that go as I venture into AMS(CRS) and DWB water treatment as it's going against everything I'd known for the 3.5 years I was in my previous job

Reading things like this helps