Run it to a buried collector with a pump connected to a float switch and have it water the lawn/garden. The collector could be a 55gal poly drum and you already have fittings. Would also let some of the sediment settle. Just make sure you can clean it out from time to time.
Now we are talking!! You guys are a huge help. I'm going to buy a 275 gallon water tote, plumb in my 2" pipe and a 4" drain water pipe from run off from my drive way, and use the opening in the top to drop in a submersible pump to water my garden or back yard periodically. Now here is my question. Should I put something, some sort of substrate in the bottom of the tote to capture whatever may come through the pipe such as lint, detergent, or any thing else that may come through the pump of the washer or storm drain? I'm going to screen off the drain entry for the run off storm water so nothing can enter. I will periodically clean the bottom of the tank to remove whatever may get into the system. I will also plumb in an overflow pipe just in case the system backs up it will over run instead of backing up in the house. Thoughts on this plan?