Irrigation and Drip Systems in Laredo

Landscape irrigation is a licensed occupation in Texas. The TCEQ issues Landscape Irrigator, Irrigation Technician and Irrigation Inspector licences under Title 30 of the Texas Administrative Code, and the state design, installation and maintenance standards for irrigation systems are set out in Chapter 344 of that title. A licence can be looked up through the TCEQ, and established irrigation companies here hold one as a matter of course. General landscape planting and maintenance is not a licensed trade in Texas; the irrigation portion is the part the state regulates.

It depends on the drought stage in force and on your address. Under Stage 3 of the city plan as it was applied in 2024, landscape watering was limited to one day a week, before 8 a.m. and after 8 p.m., with even-numbered addresses assigned Wednesday and odd-numbered addresses assigned Saturday. Stages change with reservoir conditions, so the current stage and its schedule is worth confirming with the Laredo Utilities Department rather than assuming last year still applies. The exemption that stays constant is that a drip system or a continuously attended hand-held hose may be used at any time.

Three reasons here, in order of practical weight. First, the ordinance treats drip differently from spray, so a bed on drip is not tied to the assigned watering day. Second, spray in a shrub bed loses a large share of its output to evaporation and wind in a climate this hot and this exposed, while drip puts water at the root zone. Third, spray wets foliage and hard surfaces and encourages weeds in the gaps, and drip does not.

Underground irrigation leaks usually announce themselves on the bill long before they show at the surface, particularly on well-drained sandy loam that swallows the water. The standard diagnostic is to shut the irrigation isolation valve and watch the meter: if the meter still turns with all household fixtures off, the leak is on the house side; if it stops, it is in the irrigation. From there it is a matter of running each zone and watching pressure and coverage. A stuck valve diaphragm is the other common cause and looks identical on a bill.

It is a small cost against a real benefit in a place with rainfall this uneven. Laredo averages 19.68 inches a year, and a meaningful part of that can arrive in a handful of storms, so a controller running its normal program the morning after two inches of rain is pure waste. A rain sensor or a soil moisture sensor interrupts that automatically. Most modern controllers accept one, and adding it to an existing system is usually straightforward.

It can, but it costs more and the result is usually worse, because trenching through established beds means damaging roots and disturbing plants that have just settled. Where a landscape is being built in phases, the standard approach is to install mainlines and sleeving in the first phase even if the zones themselves come later, since the expensive and disruptive part is the trenching and the crossings under hard surfaces.