Really really can`t believe this !!
Pump has been working fine until the other day,when it started pulsing,just like the others

Flushed it trough,re filled it,all ok again.
Today however,got the upstairs done and part of the stairs,and ran out of sol,thought funny should have enough to fin the stairs at least,looked down too the front door,and see a huge puddle on the coir mat,flipped it up,turned pump on,and fluid is gushing out the pump end,it`s a demand pump,so out where the square bit is on top.Got on the phone to Woodbridge straight away,usual thing have to post it back,buy another one,but it`s flipping bank hol,got work booked Tue morn,so going to have to do the 120 mile trip,first thing Tue am and get a new one.
What is going on with me and pumps,what am i doing wrong ?
Put the new one in so i wouldn`t have reliability issues,swapped the spare one in which lasted 5 mins,took cap off cleaned put back together,still no joy,put new end cap on ,ran enough to do 1 more stair then tripped the lec off and wouldn`t work again !