Hello, on my inground pool, my main pump has a large bare copper wire attached to the ground lug, that then is run into the ground (and presumably a grounding rod). I also have a booster pump a couple feet away from the main pump, which is used to make the polaris pool cleaner run. I noticed on the booster pump, it also has a ground lug on it, but there is no wire attached to it. Is this safe? The man who built my pool is now retired and moved to Florida, so I'm not sure how to get ahold of him, but I do know he was very experienced and professional and built great pools for over 30 years.
Thanks for any advice.