I’ve noticed many of the valve boxes I’ve installed tend to attract all kinds of critters, from frogs and tadpoles to wolf spiders and voles and mice. What can be done to prevent this?
There are many valve boxes that are made with special pop out areas for wires and pipes. They’re designed so that the hole cannot be entered by a critter from outside the box. The pop out piece doesn’t come all the way out; it’s still connected on one side so that you have a tight fit for the pipes or wires. This type of system should greatly discourage the invasion of critters into your valve boxes.