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My home doesn't offer a great place to eject sump water due to a very level landscape. I'm thinking of adding 3-5 standard pop-up sprinkler heads to the output line. This would allow better distribution of the ejected water than though a single output point.

However, since the system would need to be under pressure, I'd have to disconnect it seasonally and blow out the lines to prevent freeze damage.

Are there any other obvious downsides to this plan?

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    Any idea if the pump will provide enough pressure to run the sprinklers? That would be my first concern. – Eric Petroelje May 25 '18 at 15:27
  • I would think so judging by the volume of water being moved. It wouldn't matter much if the spray has a short radius. It's still better than a single dump point on a flat lawn. – isherwood May 25 '18 at 15:35
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    more work and more money, but another angle would be to setup the sump to flow into a rainbarrel with a dedicated sprinkler pump. – Rob Elliott May 25 '18 at 15:39
  • I like this second idea better because the last time you're likely to need the sprinklers to be running is when the sump pump is running – The Evil Greebo May 25 '18 at 15:54
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    I don’t think pop up sprinkler will pop up, the spring to retract them is to strong. I think it would be better to use drainage pop ups amazon.com/dp/B00HCA3SRS/ref=cm_sw_r_cp_awdb_t1_kXecBbT7X73E2 – Tyson May 25 '18 at 17:48
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Ingenious, except I’d worry about: 1) timing, 2) seasonal conflict, 3) head contamination, 4) pressure stress.

1) Timing: Murphy’s Law...but you could locate the heads away from decks, walkways, etc.

2) Seasons: Seems like the sump pump would run most during the “wet” season and not during the “dry” season when the sprinklers need it most. Could you install a valve to allow a regular water source during the dry season? (It will be most difficult during the shoulder seasons.)

3) Head Contamination: I don’t know what the pump is draining, but it would need to be very very clean. Or, you’d need a filtering system...which sounds expensive.

4) Pressure Stress: You’ll need to “size” the system (number of heads) appropriately to match the size of the pump or it could blow the heads into your neighbor’s yard.

  • Heh. I did think about timing. We'd learn after a dousing or two. :P My sump water is exceptionally clean. I'll have to investigate what pressure a typical pump provides. Thanks for the tips. – isherwood May 25 '18 at 19:18
  • @isherwood My understanding of pumps is that they have an “initial kick-on” rating and a “running” rating. The kick on rating is way more...I think. – Lee Sam May 25 '18 at 20:41

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