Take the hose out when cleaning
Sorry forgot to answer your last question; I turn the pump off and remove the hose from the top of the tank when I run it, and then just drop the hose back in, weight it down with the tank lid, and turn it back on after I finish each cleaning session.
Sota Star Sapphire V turntable, SME V, Dynavector XX2, MkII MC cartridge, Nagra BPS battery powered phono stage
Digital: Server Synology DS415+ / Sonore microRendu / Schiit Audio Gungnir Multibit / Custom Linear Power Supply by Ecco Audio
Both: BAT VK51SE > Krell FPB-300 amp > Sound Lab A3 ESLs > 50 yr. old ears(left-handed)