Had to use small wash basin in lobby for hand washing, tooth brushing etc,., corresponding toilet became unusable, kitchen taps were dipping. Also worried re loss of wrist band ( had it gone down drain ? ) Jon Lucas (of PARAGAS) removed blockage (it was the missing write band) although a second visit was needed and it involved cutting away a smack portion of the cupboard floor. He also repaired the toilet seat and checked the taps and advised me.