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The best spas (there are many, including my MasterSpas LSX) include a sealed bottom but I recommend cats.....just not lazy ones like mine! Actually, mine are great mousers as evidenced by the half eaten remains they leave at the front door as trophies.......UGH! The field down the street is a great hunting ground for'em. And the only rodents that dare enter the yard are normally brought in as toys by the mousers. Have you ever had mouse guts squeeze through your toes unexpectedly as you step out the front door first thing in the morning?
WS ewwwwwwwwwwwww hunny that was more than a need to know basis! I do remember a time when my cat (mighty mouse) was exactly like yours half eaten prizes left at my feet or gee I even had on one occasion a head of a mouse in my bed (talk about giving the cat a lecture!) But now Mighty Mouse is satisfied with sitting contently in the window of the living room and staring out at the big wide world with not much wonder! Of course...his days of being a mouser are long gone since he's at the end of his days and considered a senior citizen (Mouse is 16 years old)......wonder if I can collect Social Security on him!?