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EXAMPLE - TEST BOX SIMULATOR DRAW DOWN PUMPING TIME RESULTS DATA

Time

% of Moisture

Flow Rate

Comments

Start

Saturated

N/A

3" Head of water in tank

0-5 minutes

5.6% (Retained)

1/4 Bore - 3" pipe

Good steady clean flow

60 minutes

3.6% (Retained)

1/8 Bore - 3" pipe

Intermittent flows

240 minutes

2.4% (Retained)

Slugs Air

Air/water (Vac 19ft/hd)

480 minutes

1.3% (Retained)

None Seen

Only surface tension moisture remaining clinging to particles

720 minutes

1.3% (Retained)

None Seen

Note:

End of test
- Last three figures all same

APPROX 'K' VALUE =
10-4m / sec
RECOMMENDED FILTER PACK 3-6mm
ROUNDED GRAVEL

FREE DRAW DOWN PUMPING TEST

If you can supply MRS Ltd with 6 x 25kg bags of each of your products we will carry out a FREE DRAWDOWN PUMPING TEST (ie. time v pumping v flow rates) and we will produce a digital photograph as evidence (example on right) and a technical data sheet similar to the one above.

Please fill in our online form for further information

testresults
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