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Saturday, December 30th 2017, 5:56am

Author: JAIDC

Spray head radius

The distance of the coverage will depend on the operating pressure at the hydrant's inlet. The optimum operating pressure between conventional spray hydrants will range between 25+/- and 30+/- PSI. Partially clogged nozzles will loose coverage range, especially if they are short range (10' or less) and the water is non-potable water.

Friday, December 29th 2017, 5:32pm

Author: JAIDC

New System VS Renovation of an Existing System

Very often new home owners that appreciate and value the newly acquired property's curb appeal experience doubts on whether to have a new system installed or renovate an existing system. As a professional design and planning Consultant, as well as a Certified Landscape Irrigation Auditor my advise is the following. 1- If the system is around or older than 10 years, or has also been worked on by several persons ranging from DIY past owners, to landscape maintenance contractors; It is most likely ...

Wednesday, December 27th 2017, 4:39pm

Author: JAIDC

Tracking Water Use

Assuming that the System Manager is not making seasonal adjustments, have a series to readings done while the system is operating during an entire irrigation cycle per program. Take the results of the readings taken and multiply them times the number of cycles done per week/month. This is not the best way to do it but it is a reasonable way to have an idea of how much water is being used as long as the system is not experiencing clogged nozzle(s) or leaking pipes/sprinkler(s) problems.

Wednesday, December 27th 2017, 4:27pm

Author: JAIDC

1 inch service line 3/4 inch meter

One of the most commonly followed standards for determining a water meter's peak operating safe flow is to not exceed 80% of the water meter's peak safe flow limitation. For a 1" water meter the peak flow limit is 50+/- GPM, therefore the peak safe flow limitation is going to be 40 GPM (not shown in table presented previously. At that rate (40+/- GPM the friction loss is going to be around 9.6 GPM. If the pressure on the upstream side of the water meter is less than 60+/- GPM, you might want to ...

Wednesday, December 27th 2017, 5:10am

Author: JAIDC

One Zone Pressure is Low

"So you're saying that clogged nozzles will keep the heads from popping up? " ... No. not at all. I missed the part about the sprinklers' pistons popping up. If that is part of the issue the problem is most likely ha damaged pipe; a badly clogged pipe section between the last sprinkler that popping up and the first of the sprinklers not popping up. Turn on the zone and inspect the soil around the sprinklers that are not popping up.

Tuesday, December 26th 2017, 6:11pm

Author: JAIDC

newbie question - adding bubblers to current zone heads

Not recommended ... too cheesy. Bubblers discharge water at a rate that is much higher than the application rate of a a sprinkler's coverage. Your best bet is to have a new zone added to your controller; Have a new zone valve added to the system; And add the hydrants that are suitable for hydrating your new plants. Payback for your investment may come through increased curb appeal, leading to a mild increase of property value.

Tuesday, December 26th 2017, 6:04pm

Author: JAIDC

Warranty for new system

If your current/existing system is so old that still has sections of metal pipe connecting it, and several landscape/irrigation companies/technicians have worked on itn it is a very strong as well as alarming signal that it is time to disconnect the old system and invest on a new one. You are facing one of three courses of action: 1- Invest now and save later by having a new system that is fully warrantied; 2- Save now, and pay later over the long term. Be cheap and just making occasional servic...

Tuesday, December 26th 2017, 5:53pm

Author: JAIDC

One Zone Pressure is Low

Also, it is possible for some of the nozzles (like towards the end of the line/farthest from the valve, to be partially or fully clogged. This is very typical when soil/debris has intruded into the piping and worked its way downstream to the farther hydrants and clogged them if the nozzles orifice is small or partially closed due to age or initial clogging.

Tuesday, December 26th 2017, 5:47pm

Author: JAIDC

Dallas Drip Irrigation- Do I need to blowout for the winter?

Yes, Dallas does get cold enough for water to freeze within piping that is installed at grade, or has shallow burial depths. Observe the elevation at your zone(s)/system point of connection. If the elevation is higher, you might be lucky enough to get by adding a flush valve (PVC ball valve, or a figure 8 closing clamp) at the end(s) or farthest sections of the zone(s). If you are not sure hire a Licensed Irrigator to review your issue(s), and recommend a suitable course of corrective action.

Tuesday, December 26th 2017, 5:38pm

Author: JAIDC

Winterization, turned water back on

An isolation valve should be added to the line that leads to your sprinklers supply line point of connection.

Tuesday, December 26th 2017, 5:35pm

Author: JAIDC

Variable Water pressure

Sounds like your system's pipe sizing could be part of the problem. The pipe size addressed is most likely undersized if the sprinklers addressed have flows in excess of 1 GPM. Small pipe such as 1/2" will able to manage only flows up to 5 GPM as long as the pipe sections from sprinkler to sprinkler are not long. Friction losses in small diameter piping build up very quickly. If the sprinklers' nozzles are large coverage diameter such as 12' to 17' radius, you could replace them w/ multi-stream ...

Tuesday, December 26th 2017, 5:22pm

Author: JAIDC

Valve Locations

That is a bit of an overkill for most jobs. In 29 years of professional consulting experience, including large projects such as regional parks, parkways, etc. I have never seen it done. Some times there are some designers working for engineering firms that like to show off some skill that it is not common to others, and add it to the construction documents (plan). The designer needs to keep the construction documents, including plans, simple and easy to read for everyone ... less is more. Using ...

Friday, May 19th 2017, 12:17pm

Author: JAIDC

Undersized Piping

A flow of 9+/- GPM is way too much, large for a 1/2" pipe. 3/4" Would be the minimal size, 1" would give you more cushion. However on a 24' run of pipe there is not going to be much water force to develop a water hammer that can damage irrigation equipment. If your pressure is 60 PSI, most likely the problem is with the static as well as operating pressure coming from your source. Chances are that your product requires a lower operating pressure such as 30 PSI to 40 PSI, and a constant 60+PSI cr...

Friday, May 19th 2017, 12:08pm

Author: JAIDC

Removing Old Pipe For New Sprinkler Head

More than likely the system is pretty outdated. The friction losses of water going through old/aged pipe are going to be pretty bad. Does the system show leaks at different locations? Maybe it is time to sever and disconnect the old piping, and start out with a new zone/system using PVC piping as well as PVC interconnecting threaded fittings that will make connecting threaded connections a lot easier. Good luck.