I am new to pools now that I rent a house with one. I have been battling pool cloudiness for a bit and would like to change the media since it has not been in 3 years now as per the homeowner. I would like to give you values for the chemistry but am awaiting a Taylor kit to arrive, however, I believe the chemistry is great as per the pooltek strips. The image attached is the sand filter dome cover removed and I do not know how to proceed in emptying it of media. What needs to be removed next?