Understanding meter

[Graham.]

Morning all.

Could someone give me the calculations on turning this into a gallonage figure please.

This is the reading on the pond without any filters and pipes opened, i'll put last and final reading up as soon as done.



Many thanks
Graham

[koicarpus]

Hi mate

1 m3 is 220 gallons, so your reading of 22 is 4840 gallons.

Dave

[kayoss]

Hi Graham

The second dial from the left (x 0.001) reads mililitres (ml).

So, to the nearest ml, it looks like 21.680 cubic meters. Multiply that by 220 and you have the answer in gallons - i.e. 4769.6 gallons.

For treatments etc. I'd think a round figure of 4800 gallons would be accurate enough.

Cheers

Bob

[koicarpus]

Or if you want it more exact going by the little dials it's 21.6790m3

x by 220 = 4769.38 gallons

( I think )
Dave

[Graham.]

Thanks gents, always good to get a second and third opinion so thanks.

I'll put the final one up as soon as the last of the filters are completed which should add a fair few gallons more to final fill.

Thank you once again.

Graham

[kayoss]

Hi Graham

Please ignore the first sentence of my original reply - it's cobblers!

It doesn't make any difference to the gallonage of the pond, but just to clarify what I should have said: The second dial from the left reads thousandths of a cubic meter, not thousandths of a litre - i.e. it reads litres, not millilitres.

So, to the nearest litre, the meter is reading 21,680 litres (21.680 cubic meters or 21.680 tonnes).

Sorry for the mistake in the original reply.

Cheers

Bob

[Manky Sanke]

I've found the easiest way to read these is in litres and don't take the nearest number to the pointer or centre of the display, take the lower number that has definitely been passed.

'Frinstance:

On the display which gives m3 (1 m3 = 1,000 litres):

The first 2 has definitely been passed because the 3 is just creeping up from below. The first digit is 2.

The second 2 isn't quite in place, the 1 hasn't completely gone. The second digit is 1.

On the dials, reading from right to left:

The 6 has been passed, the 7 has been passed and the 9 has been passed. Ignore the last dial, even if it wasn't zero, it's tenths of a litre - (even I wouldn't measure a pond volume that accurately).

So you have 21,679 litres.
Divide by 4.55 and you get 4,674 (and a bit) gallons.

[Graham.]

Thanks Bob & Syd, something new I've learnt today, thanks.

Graham