Jack Barnard wrote:[size=12]I will have a catch basin at the east most point of my property or the property next to mine (which I own and is vacant). Which will catch all the rain runoff from the impervious areas, as well as, as much of the ground water as possible. From there I will pump it to the holding tank, which is 1500 gallons. But from here I am stalling out on the rest of the process. Note: I also own a third property which is the east most property of them all.
I want to bury the holding tank, which is about 6ft. tall and 8.5 ft. in diameter. I know there needs to be a pump to bring my water back to me to use to water the landscaping and grass, but not sure how big or how many gpms. Also, does the water need to filtered? Hopefully next summer I will finish this project off by adding my automatic sprinkler system which then the tank would be the main supply of water until it ran out of water of course. Then the system would kick over to the city to use their water until tank was full again.
So the info that I am struggling with is once I pump to the holding tank whats the process after that? Also is there a way to create more water storage space without breaking the bank and buying some huge holding tank?
I am questioning using my old gutters after reading up on some of the info on the web. Most of the info that I have read has said to use half round gutters, what are your thoughts??? And type of material, does it matter?? As in vinyl, metal, aluminum,.....
Another thing I have read is that you should let the first part of the rain shower down the drain, per se, then collect the rest. There is a name for that part of the system, but I forgot what it is called. What are your thoughts of getting rid of the first few inches or minutes of the rainfall???
Also, some type of leaf guard for the gutters, do you have a suggestion??
Next I have an area of yard that is bare, not grass and can see the footings of my foundation. My plan was to just lay down the pipe (both french drain, and gutter drain) then cover in rock. Then figure out a way to keep it all in place. As in like cross ties or edging. Does this sound viable??? I have used the fabric along the whole course of the french drain.
Made it home with the 1500 gallon poly tank. It was an experience in of itself. Now its time to figure out the rest of the details. Waiting on the "call before you dig" people to come out and mark the properties. Then its off to work. Would love to know why they say not to bury poly tanks? Are there any stipulations that could change that? Like adding sand instead of dirt to cover the tank, or not burying it completely or anything of that nature?
Please share any info, advice, or thoughts that you may have. I will be installing the tank within a week and a half and hope to figure out a way to bury it to some extent. Thanks for your time and knowledge.
Anne Miller wrote:
Why are you not going directly from the house to the tank? I understand about the low areas but it seems to me that you will get much more water coming off the house. Also pumping from a collection area might cause dirt problems with your pump? I know nothing of this.
"I have read is that you should let the first part of the rain shower down the drain, per se, then collect the rest. " This is to better clean the water that comes off your roof. It collect the dirt and not put it in your tank.
Our 1500 gal tank sits next to the house and is attached to the gutters with the first part of the rain shower down the drain then collect the rest. Ours is not buried but sits on and earth pad then surrounded by gravel.
I hope others will respond that can better answer your questions.
Tys Sniffen wrote:I collect rainwater off my house and car port for both garden irrigation and house plumbing, so I have some experience with this, but in a very different part of the country with different rules, climate, neighbors, and elevation.
I'm not coming at you with a complete suggested plan, but some gravel-kicking thoughts.
- when you say 'catch basin at the eastern (lowest, right?) side of your property, what do you mean by that? A pond? because that's a good idea if you can do it, but looks like you've got neighbors, which means zoning and planning and environmental impact, etc.
- if you had a pond - a good sized one - that would stay around all year, and it sounds like you are ready to buy a pump, you could just pump up water to a small (50 gal?) holding tank and then let that feed whatever watering you want.
- why bother watering grass? that is, why spend energy and water on grass? just asking.
- if you already own this 1500g tank, which sounds like it might be one of those green HDPE sorts... the ones I have say specifically: DO NOT BURY. so check out if you can do that.
- a batch of your situation sounds like trying to keep water away from the house. putting it in a tank won't really do much to keep your basement dry.
Tys Sniffen wrote:my swipe about grass was really one of those 'permaculture smug bastards' sorts of thing about the grass itself - as in, don't grow a crop just for walking on and looking at, but rather either let it go wild or actually farm it. I realize not everyone can or wants to go 'full rebel' in landscaping. I totally am on board with figuring out how to save water and not buy it.
Actually, one thing about 'not grass' would be that a natural landscape would probably be a better buffer for storm water and in addition, not need watering in the dry times. So, rethinking your project and doing more swales and trenches and landscaping might be the lowest-impact, best long term solution. still, that's just more smug permie talk.
about burying the tank: I think you're right, it's because it could collapse if it was empty on the inside. and yes, basically building a basement around the tank (with cinder blocks, or treated wood, or poured concrete or something) would work. but that's a lot of work just to not look at a tank. you might just look around for a different sort of tank that CAN be buried. a new septic tank (that is, never used, so it's clean) with a few plumbing alterations could be tossed in a dirt hole.
now, about saving water:
So, if I'm understanding, you're planning on having all the water from the house roof AND the french drains go to a 50 gallon barrel downhill, and then have a pump in that barrel that moves 1500 of it uphill to a tank? Even if it's just one of those sources of water, you'd better do the math on how much water will be hitting that garbage can at one time.
example: my house roof has about 2000sf of surface. that means every inch of rain, I get 1200 GALLONS through the downspouts. Like you're experiencing (and we all will, as climate change keeps messing us up) I get 7 and 8 inches of rain in 24 hours.
That means, conservatively, I get .33" an hour of rain, or 400 gallons an hour down the spout. if your house is anything like the size of my small house, your pump is going to have to work REALLY FAST and REALLY hard to keep that garbage can from overflowing. AND, if you have that strong of a pump, and you have that much power during these big storms, in a little over 3 hours, your HDPE tank is going to be full. then you'll have to turn that pump off.
Which to me sounds like you're going to have something of a pond down at this point on your property anyway.
Maybe I'm looking at your situation with jealousy, as I've been dreaming of ponds up on my place, but my slope and access doesn't allow me the space or tractor access for a real pond.... but I'm still thinking this is my best advice. Digging a big hole in a low spot and then managing it for good ecology (meaning - getting fish and things in there to keep the skeeters down) and being able to drop a pump line into it for filling up a 1500 tank multiple times throughout the summer seems like a wonderful bonus, rather than a complicated piping-and-pump-back artificial system.