Hi Tellie , a sailor in the chat C&S forum gave me your name .I have a sea recovery ultra whisper 200 12 volts but it died due to a fail in the tubular ETD .It receive flow from low pressure pump but is incapable to raise the pressure to the membrane .In fact it doesn't work .I'm trying to contact sea recovery for a maintenance kit of seals and o'ring or a new ETD , but has been impossible to do .Could you help me ? .Mi mail is hhcorreav-gmail.com and name hernan Correa .My sailboat is at Puerto Montt Chile .Thanks and regards