River water home irrigation

My son lives in Okanogan, Washington (semi-arid) where residences pay for municipal river water for home irrigation purposes. The water is pumped unfiltered from the Okanogan River, and if they try to filter it at the home outlet, it clogs any filter with organic matter within minutes. (Potable water from the house system is too expensive use as irrigation, even for a small 1/2 acre home, especially at the quantities needed to keep the area green.)  They had thought about soaker hoses, but I would think they would also get clogged very quickly.

Is there any means to use this water similar to drip irrigation system, but not clog? Any advice on getting unfiltered river water to the veggies and flowers in a better manner than a wide sprayer would be greatly appreciated.

similar to a septic system, a series of tank to settle the suspended solid might help. Esp one with a sand filter setup.
The stuff in the tanks needs to be 'pumped' empty maybe once every 3month, aka flood irrigation, so as not to overwhelm the sand filter.

I feel that reed beds may be what is needed.

Here are some threads that will explain, especially the first one:

https://permies.com/t/95821/Filtering-river-water-irrigation#791137

https://permies.com/t/107726/Reed-Bed-Duck-Pond-Filtration

https://permies.com/t/129981/Science-greywater-treatment


This is a book about reed beds:

https://permies.com/wiki/88761/Permaculture-Guide-Reed-Beds-Feidhlim

you could use a sand filter first to get the bulk of the clogging reduced. something like this
sand filter on amazon

https://www.amazon.com/Intex-Krystal-filter-Ground-110-120V/dp/B07FHHV9YP/ref=asc_df_B07FHHV9YP/?tag=hyprod-20&linkCode=df0&hvadid=309941848001&hvpos=&hvnetw=g&hvrand=13899598634398198667&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9010264&hvtargid=pla-595512009984&psc=1&tag=&ref=&adgrpid=60520431766&hvpone=&hvptwo=&hvadid=309941848001&hvpos=&hvnetw=g&hvrand=13899598634398198667&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9010264&hvtargid=pla-595512009984

benefit of a sand filter is they can be flushed out and many models don't have throw away filters that have to be replaced and are added expense. some filters have permanent flushable cartridges also.

S Bengi wrote:similar to a septic system, a series of tank to settle the suspended solid might help. Esp one with a sand filter setup.
The stuff in the tanks needs to be 'pumped' empty maybe once every 3month, aka flood irrigation, so as not to overwhelm the sand filter.

If you have a way to hold the water for 24 hours. Then use a pump to get the clear water and stop when the water begins to become cloudy. This could work but keep in mind that to make drinking water chemicals and filters are used together.

There is something called a Bubbler that can be used to clean river water enough for sprayer applications.

https://www.ars.usda.gov/ARSUserFiles/20540000/presentations/trashscreen/trashscreen.html

There is a thing called a "radial-flow filter", used in aquaponics, to filter out fish waste solids. I'm not sure if it can work in a pressurized system or not, but it could be a good first-stage before any other method of settling in a tank(s). It is quite simple to construct and you could find out how with a search for "radial-flow filter", and "aquaponics".  It is a barrel with 3 pipes entering, a drain at the bottom (normally closed) to flush away the captured solids, an exit pipe near the top for "clean" water, and a input pipe which often enters partway up the side, and once inside it bends upwards in the center of the barrel. The input pipe is covered by an upside-down bucket (or wide pipe with a cap). As water enters, it makes a sharp turn at the top of the inlet to travel DOWN inside the upside-down bucket, then to exit the barrel, water makes another sharp turn UP around the rim of the bucket. The solids are carried downward by momentum towards the bottom of the barrel, where they collect.

If you are using river water to irrigate, like my family has for 150 years, I recommend that you use equipment designed to handle river water -- overhead sprinklers with large orifices that can pass whatever sediments, plant debris, or insects come through the system.