if u no the laws and are good at fighting ur point in court, u can actually negate this whole issue. its just expensive because its a cheat code the council and the company who install it want to try and rip money out of you for. u just need to know how to deal with such issues and win it.
hand gel isnt exactly eco friendly, although they can claim to be eco friendly they only reduce the harmful affects by a small amount. normal soap is the better option aka eco friendly soap.