Watering Your Foundation – A Permanent Solution

October 13, 2017

Several months back I wrote a post about Watering Your Foundation, after that I wrote  Watering Your Foundation – Getting Ready for Summer and in that post I promised a final follow-up on creating a permanent solution to creating a low maintenance solution that removes most of the problems associated with earlier solutions. Granted, this one is a bit more work and on a DIY scale of 1-10 10 being the hardest, I would give this a 7-8 (depending on what you may or may not already have. Since you have already read the last two, no need to go through the why and what for, but to just pick it up from the last post. Since the summer is (mostly) over, this might be a good project to complete with the weather is still pleasant.

The biggest advantages to this solution vs. the last one is, convenience, and integration into a lawn sprinkler system.

Things you will need to for this to work with the least amount of inconvenience and disruption. This solution is based on having all three of the listed conditions. However, any of these items can be added, but it can dramatically impact the cost to provide it.

  1. Preexisting  lawn sprinkler system in good working order and a timer/controller
  2. The timer/controller will need to have at least one extra or vacant station assignment. If you have more station numbers than active stations you probably have an extra one.
  3. You will need to determine if you have a spare controller wire (in the controller) and you will have to locate that same wire outside.

The next step is to create a new zone or station on your lawn sprinkler system.  I will cover the basic process but if you have never really cut into your system, this might be the time to get some knowledgeable help or hire a sprinkler contractor to build you a new zone.

Create a New Sprinkler Zone

  1. Find a sprinkler zone  that has its control valve close to the house.
  2. Dig up the dirt around the control valve enough to expose the control valve and the associated water pipe that feeds the valve. Figure out which side of the valve has pressure on it (all the time).
  3. Determine that the spare wire you located in the timer/controller shows up here too! Us a volt ohm meter as a continuity tester to confirm.
  4. The pipe feeding the valve is under pressure, so you will need to turn the water off at the source before you do it.
  5. To determine which is the pressure side, there should be an arrow, or water flow indicator on the valve body.
  6. .Cut the pipe, Tee in a joint  to install a new valve.
  7. Install a drip zone flow control valve equipped with a filter assembly. This valve will keep the flow in spec as well as keep the emitter from getting stopped up.
  8. Extend a wire from the existing valve to the new valve including a common (usually white) and a new wire that you are picking up from the controller timer.
  9. Make sure the new valve is closed and turn the water back on and check for leaks.
  10. If you want to test it at this point, go right ahead, but realize if you did this correctly, it’s gonna get real muddy real quick.

Parts Needed for the Drip Emitter Foundation Watering System

  1. 1/2 poly hose to use for areas that do not need the emmiters
  2. 1/2 Emitter tube, used to circle the house
  3. Various connector/fittings. You will need some fitting to go around tight corners since the pipe does not make sharp corners as well as connecting to the valve.
  4. Landscape anchor staples; use to pin the tubing down in place while you are installing it.

Install the  System

  1. Dig a ditch from the new valve to about 12-16 inches from the foundation to conceal the feeder pipe so it will not be exposed to damage in the yard.
  2. Depth of new emitter hose is kind of “it depends”, so in other words, it can be on the surface or 3-12 inches below the surface. Either way, realize that when gardening or digging around the flower beds, if you hit the emitter pipe, you can easily cut it. So regardless of the depth, after gardening, run the section to identify any leaks.
  3.  Since you are probably 10 or more feet from the house, you may want to use 1/2 poly hose from the valve to the house foundation (unless the valve is already at the foundation, then you can just start with emitter hose). You can buy shorter lengths of this from the big box store, but depending on your house arrangement, you may want to use this pipe in places you do not need to water
  4. Connect the emitter tube and route through the landscape staying about 12″ from the edge of the foundation. This tubing is sort of stiff, so use a connector to make a sharp bend. Use the landscape staples to keep it in its place.
  5. There are no rules to stop you from installing a Tee and going both ways around the house, and if you have to branch out, that is fine too. 100 feet is the limitation of the emitter tube from the valve, but you can tee it in to two 100 ft lengths.
  6. Make the electrical connection at the sprinkler controller and program in the new zone. You can have a summer and winter time schedule, but its good to water this zone all year long, again to keep the soil close to a constant moisture level.

 

 

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Watering your Foundation – Its a Texas Thing Part III

March 23, 2016

Texas-Drought-2011As mentioned in my last post on watering your foundation; Here in North Texas it is essential.  Since this is not a one time event but a regular requirement, you might as well look at a relative permanent approach to the solution. I identified several ways to do this in my last posts on the subject but I wanted to share a bit more permanent method. The concept is the same, but its a bit more work, and you may want to hire an irrigation specialist to do it.

The biggest difference in this solution is capitalizing on the fact that you may already have a permanent in-ground sprinkler system. With this system, you operate it as any other section to your irrigation system profile and its no longer a separate system to take care of.

Criteria of existing lawn sprinkler system: For this to work, you need an automatic lawn sprinkler system and a couple more conditions to make it work.

  1. sprinkler controllerElectronic Irrigation controller: The irrigation controller will be the source of the schedule to water the foundation.
    1. Spare Zone: Most controllers come in 4, 6, 8, 12 (and so on) zones. You will need at least one vacant zone position for this to work. You can query the controller by stepping through the zones. When you select the zone with the controller, look for statements in the readout that could say things like; vacant, not-wired, turned off, etc. It that doesn’t work, open the back half of the controller and look at the incoming wiring. Each position that has a number on it represents a zone. If you find a number with no wire, you should have a vacant zone. If you don’t have any vacant zones, your forward path from this point would be to replace the controller with more zones. This may exceed your budgetary limitations
    2. Spare Wire: In many cases during the initial installation, the cable with the zone wires in it, may exceed the number of connected zones. So look for some coiled up wires in the base of the controller.  If that is the case, you are in luck and can use one of the spare wires. If you have no spare wires but a spare zone on the controller, you would have to add a pair for the new zone. (a colored wire and a common (white) wire).
  2. sprinkler-valveAdding a New Valve: At this point, you have a 1)zone position in the controller, 2) a spare wire for the new zone. Now, locate all the existing valves in the yard. Specifically ones that are close to the house.
    1. In that valve box, look for the same color wire you identified in the controller, if it is not there, check the other valves. Worst case, you may have to bring a new wire to your chosen location.
    2. Dig up around the existing valve and identify which pipe is under pressure all the time. Once identified, turn the main water supply off that feeds the sprinkler system (probably near the water meter), you will cut into the pipe and add a new valve. You may have to run a short piece of wire from the existing valve to the new one to hook it up. The connection will be one colored wire and one “Common”.
    3. When you buy the new valve, make sure it has (low) flow control, and or is designed to work with zones that don’t use a lot of water pressure. The drip lines you use have a low GPM (gallon per minute) rating as well as low pressure.
  3.  Polypipe: Depending on where you locate the new valve, you may need a section of polypipe to get you to the foundation.  You can cut the hose to length and use the polypipe fittings to make up the ends. Make sure the polypipe and fittings are the same dimensions. Since all these connections are on the low pressure side of the system, these fittings are just simple resistance (chinese finger) snap in connectors.
  4. Drip Lines:  From the poly pipe, use the same fitting to transition to the Drip Line. These hoses are designed with drip emitters in the hose every 12 inches.  Run it around the house keeping it about 6 inches from the foundation.  You can bury them a couple of inches or hide them with mulch. Staking them with landscape stakes will help keep them in place as this product does not like to lay flat to the ground. You can purchase the hose in bulk from the Orange Box store of Sprinkler Warehouse. You will need to also purchase inter-hose connectors as well as a way to connect to your water. If you have to make a sharp turn it is better to use a fitting than bending the pipe. You do not want to crimp the hose. Splitting the line with a Tee is totally acceptable, and it will also allow a little better flow control if the go half way around the house with one feed and half with the other.

 

So here is what it looks like in dollars. Admittedly, you can probably do this a little cheaper, but I used high quality components, so this should last for years to come.

DripSys for house

Related articles:https://homeownerbob.wordpress.com/2012/03/05/watering-your-foundation-its-a-texas-thing/

https://homeownerbob.wordpress.com/2012/06/06/watering-your-foundation-getting-ready-for-the-summer/