Rainwater irrigation needs change as temperatures rise and fall and rainfall patterns shift. A system that worked well during a wet spring may need different settings during a dry summer, while freezing weather can damage exposed pipes and equipment. A few routine checks help you use stored water wisely and spot problems before they interrupt watering. Review the tank, filters, lines, pump, and controls at each seasonal transition, then adjust your schedule to match current weather and plant needs.
Inspect the Tank and Inlets
Check the tank exterior for cracks, bulging, loose fittings, or signs of leakage. Make sure the lid is secure and the overflow outlet is clear. Remove leaves and other debris from roof gutters, downspouts, and inlet screens so rain can reach the tank without carrying excess sediment. Keep screens in place to limit pests and debris, and inspect them after storms or when nearby trees shed heavily.
Look at the water level and note how quickly it changes during periods of rain and irrigation. A level that drops unexpectedly may point to a leak, an open valve, or an irrigation line that is running too long. If the tank has a first-flush diverter or sediment trap, clean it according to its design and the manufacturer’s guidance. Avoid entering a tank; use accessible inspection points or ask a qualified service provider.
Clean Filters and Check Flow
Filters can clog faster when storms wash pollen, roof grit, or leaves into the system. Shut off the pump before opening a filter housing, then clean or replace the filter as directed by the equipment maker. Check irrigation emitters and sprinkler heads for uneven flow, weak output, or blockage. Flush lines where the system allows it, and make sure valves open and close fully.
Listen for unusual pump noise and look for damp connections, loose wiring, or repeated cycling. Confirm that the pump’s intake stays submerged when the tank level is low, if the system requires it. Do not run a pump dry. If pressure changes continue after cleaning, or electrical parts show damage, stop using the affected equipment and arrange a professional inspection.
Adjust for Weather and Plants
Change watering frequency as rainfall and temperatures change. After a soaking rain, pause or shorten scheduled irrigation and check soil moisture before restarting. During hot, dry stretches, water when plants need it rather than relying on a fixed calendar. Watering early in the day can reduce evaporation, and drip lines can direct water toward roots instead of wetting paths or foliage.
Review zones separately because lawns, established trees, containers, and new plantings have different needs. Check soil a few inches below the surface near representative plants; dry soil may call for watering, while persistently wet soil can signal overwatering or poor drainage. Update controller settings after weather shifts, and keep a simple note of rainfall, tank levels, and adjustments to make patterns easier to recognize.
Prepare for Cold and Seasonal Shutdown
Before freezing weather, identify exposed pipes, valves, filters, and pump components. Follow the system manufacturer’s instructions for draining or insulating them, and protect any equipment that cannot tolerate freezing. Do not assume that a closed valve alone will prevent damage; trapped water can expand and split fittings. If you are unsure how to winterize a pump or pressure tank, have a qualified technician handle the process.
When warmer weather returns, inspect components before turning the system back on. Reconnect drained lines, open valves gradually, and watch for leaks as the system fills. Clean filters, test each irrigation zone, and confirm that controls reflect the current season. Cumberland Rainworks can help Nashville property owners review system condition and seasonal settings; use the contact details on its website to ask about service.
A short inspection at each seasonal change can protect equipment, reduce wasted water, and keep irrigation aligned with the weather. Check the tank, clear filters, test flow, adjust schedules, and prepare exposed parts for freezing conditions. Keep notes on changes and address unusual leaks or pump behavior promptly. If you want help reviewing your setup, contact a rainwater irrigation professional.