Thanks,
Our main issue is our products can have several tags from the same category at the same time.
So we sell football goals and have a filter for ‘ages’ for which age groups the goals are suitable.
Many of our goals are suitable for ‘kids’,‘teens’ and adults so they should appear if any of those filters are pressed. My idea to get around this was to have a metafield for each age range with a true or false input. We had many different filters setup for our products that were similar in that a product could have several of the tags from the same category of tag. Another example is that these goals are used on different surfaces and many are suitable for several different surfaces.