ToughButterCup Posted March 5, 2018 Share Posted March 5, 2018 Here's what needs replacement. Just checking that there isn't some hidden gottcha about them.... Thanks Ian Link to comment Share on other sites More sharing options...
PeterW Posted March 5, 2018 Share Posted March 5, 2018 Good spray of WD40 on the stems of the isolator valves and when you reopen them, open full then back off 1/4 turn. And use pipe pliers on the big nuts ..! Link to comment Share on other sites More sharing options...
Nickfromwales Posted March 5, 2018 Share Posted March 5, 2018 And the pump MUST lay perfectly flat or the front wet bearing will run dry and burn the pump out prematurely. The pic seems to show it slightly uphill. Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 5, 2018 Author Share Posted March 5, 2018 2 minutes ago, PeterW said: Good spray of WD40 on the stems of the isolator valves and when you reopen them, [...] I'd heard of the back off a 1/4 turn , but not WD40 on the isolators valves. I've just renewed the valves because the previous lot were seized solid - because I didn't know about using WD40 on them.... Hmmm. Ya dunno whatcha dunno do ya? Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 5, 2018 Author Share Posted March 5, 2018 1 minute ago, Nickfromwales said: And the pump MUST lay perfectly flat or the front wet bearing will run dry and burn the pump out prematurely. The pic seems to show it slightly uphill. There ya go! If anyone wants to know why I keep coming back to BH, here's the answer. Thanks Nick Ian Link to comment Share on other sites More sharing options...
dpmiller Posted March 5, 2018 Share Posted March 5, 2018 that's why we read the instructions too! Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 5, 2018 Author Share Posted March 5, 2018 Just now, dpmiller said: that's why we read the instructions too! Who is ' ...we...' in this case. TBH I am more guilty than most of the opposite Link to comment Share on other sites More sharing options...
Nickfromwales Posted March 5, 2018 Share Posted March 5, 2018 7 minutes ago, dpmiller said: that's why we read the instructions too! NEVER!!!!!!!! Link to comment Share on other sites More sharing options...
ToughButterCup Posted March 5, 2018 Author Share Posted March 5, 2018 OK then boys... (sorry @lizzie, @Hecateh, @Moira Niedzwiecka and every other woman in the world )..... How do you level a pump? Eh? Tell me that, now 1 Link to comment Share on other sites More sharing options...
Declan52 Posted March 5, 2018 Share Posted March 5, 2018 With a level. 1 Link to comment Share on other sites More sharing options...
daiking Posted March 5, 2018 Share Posted March 5, 2018 51 minutes ago, recoveringacademic said: OK then boys... (sorry @lizzie, @Hecateh, @Moira Niedzwiecka and every other woman in the world )..... How do you level a pump? Eh? Tell me that, now Jack up the left hand side of the house (Your left as you’re looking at the pump) 1 1 Link to comment Share on other sites More sharing options...
Temp Posted March 5, 2018 Share Posted March 5, 2018 (edited) 3 hours ago, Nickfromwales said: And the pump MUST lay perfectly flat or the front wet bearing will run dry and burn the pump out prematurely. The pic seems to show it slightly uphill. +1 See page 27 of the installation manual... http://net.grundfos.com/Appl/ccmsservices/public/literature/filedata/Grundfosliterature-4609706.pdf The shaft of the pump should be horizontal and it looks "tipped back" (possibly as much as 45 degrees) in the photo above. Edited March 5, 2018 by Temp Link to comment Share on other sites More sharing options...
Nickfromwales Posted March 5, 2018 Share Posted March 5, 2018 2 hours ago, recoveringacademic said: OK then boys... (sorry @lizzie, @Hecateh, @Moira Niedzwiecka and every other woman in the world )..... How do you level a pump? Eh? Tell me that, now Just rotate the wee beastie before finally tightening the nuts up. Simples. Link to comment Share on other sites More sharing options...
Onoff Posted March 5, 2018 Share Posted March 5, 2018 And use a decent lubricating / pipe fitting compound I would, like (Jet Blue Plus) on the compression joints. Link to comment Share on other sites More sharing options...
Nickfromwales Posted March 5, 2018 Share Posted March 5, 2018 Don't get any on the flat mating surfaces of the pump or valves, ( where the rubber sealing washers press against ). Link to comment Share on other sites More sharing options...
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