Hazard with Concrete Septic Valves Cap/Collar
We have a low pressure septic system for our 12-year old house. As part of the system, two valves can be adjusted to help regulate the flow to the main lines (these have never been touched so far in our 12 years). These valves needed to be placed near the system, but unfortunately, that dictated that they be placed in the middle of our yard. To protect the valves, they placed a concrete collar around the valves and topped it with a concrete cap. The concrete cap is an eyesore, and it is also dangerous since it makes playing in the yard a hazard for everyone (especially children).
Any suggestions to help remove this eyesore and hazard? We were thinking of simply removing the cap (and quite possibly the collar), placing a sturdy cover over the valves (if needed), and filling the hole with dirt or even stone. This would allow access in the future to the valves (with some digging), but would remove the concrete cap/collar which is the hazard.
And sorry for the cross posting. Had no idea if this belonged in Landscaping or Plumbing.