PUMP TEST HOSE LAYOUTS

Below are some suggested layouts to use when performing your annual pump tests. By no means are these suggestions the only way it can be done. Basically these are "old school" layouts that are tried and proven over many years. That is not to say that they are the best way, the only way, or the easiest way. However, if you are new to performing yearly apparatus pump tests these suggestions can save you a lot of time and effort.

Each pump section addresses the three primary tests of 100%, 70% and 50% capacity. If you choose to do the optional overload or "spurt" test you can use the same setup as used for the 100% capacity test.

You should resist the temptation to reduce the length of the hose lays. Some friction loss is needed to maintain the pressure differential between the pump and the tip. However, if you are having problems getting enough pressure on the master gauge but can easily make the proper flows, hose can be added to the layout. The added friction loss can actually help.

750 GPM Rated Pump Using 20' of 4-1/2" Suction Hose

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	750	2 each, 2-1/2" x 100'	1-3/4	68	750
70%	200	525	1 each, 2-1/2" x 100'	1-1/2	64	534
50%	250	375	1 each, 2-1/2" x 100'	1-1/4"	68	382

1000 GPM Rated Pump Using 20' of 5" Suction Hose

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	1000	3 each, 2-1/2" x 100'	2"	72	1008
70%	200	700	2 each, 2-1/2" x 100'	1-3/4"	60	704
50%	250	500	1 each, 2-1/2" x 100'	1-1/2"	58	508

1250 GPM Rated Pump Using 20' of 6" Suction Hose

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	1250	4 each, 2-1/2" x 100'	2-1/4"	70	1260
70%	200	875	3 each, 2-1/2" x 100'	2"	56	889
50%	250	625	2 each, 2-1/2" x 100'	1-3/4"	48	630

1500 GPM Rated Pump Using 20' of 6" Suction Hose

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	1500	4 each, 2-1/2" x 100'	2-1/2"	66	1510
70%	200	1050	3 each, 2-1/2" x 100'	2"	78	1050
50%	250	750	2 each, 2-1/2" x 100'	1-3/4"	68	750

1750 GPM Rated Pump Using TWO Master Streams and DUAL 20' Long 6" Suction Hoses

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	1750	4 each, 2-1/2" x 100'	(2) 2"	55	1760
70%	200	1250	4 each, 2-1/2" x 100'	(2)1-3/4	48	1260
50%	250	875	3 each, 2-1/2" x 100'	(1) 2"	54	873

2000 GPM Rated Pump Using TWO Master Streams and DUAL 20' Long 6" Suction Hoses

Test	Pump Press	GPM	Hose Layout	Tip Size	Pitot	Actual Flow
100%	150	2000	4 each, 2-1/2" x 100'	(2) 2"	71	2002
70%	200	1400	4 each, 2-1/2" x 100'	(2) 1-3/4"	60	1408
50%	250	1000	4 each, 2-1/2" x 100'	(2) 1-1/2"	56	1001

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