Even with a clean filter etc. it still used to take a long time to empty the shower tray on Playtime. I found the push button switch arrangement hard to push for minutes on end so replaced it with a normal single pole, single throw (on/off) switch with a waterproof cover.

It was one of the simplest and best mods I made to Playtime!

I also made the same change to the macerator pump push button (identical to the shower push button) for the same reason.