In article ,
"David.WE.Roberts" writes:
On Sun, 24 Mar 2013 15:36:34 +0000, robert wrote:

On 23/03/2013 15:32, John Rumm wrote:
On 23/03/2013 14:13, David.WE.Roberts wrote:
Is it worth laying out for a flow cup or similar, instead of
calibrating a bucket with a measuring jug?

If so, can anyone recommend a suitable flow cup?

Preferably easily available and cheap :-)

A known capacity bucket is by far the simplest. Larger volumes make for
somewhat more accurate measurements (i.e. a 14l bucket will be better
than a 1l jug)

Unless you are looking for accurate figures ( not sure for what purpose)
roughly timing how long it takes to fill a 2 litre jug or 10 litre
bucket ( they usually have a capacity mark on them) should provide
figures accurate enough for benchmarking or looking for problems.

I have flow figures at different outlets of between 5 and 13 seconds for
a 2 litre jug.

I would like to have a longer period than 5 seconds for the test because
start/stop errors could skew the results.

Run the flow for longer, but just direct 5 or 10 seconds worth
mid flow into a container.

10 litre bucket sounds about right.

--
Andrew Gabriel
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