Hi Peter, Sorry to hear you have ended up with this situation but for me I wouldn't use the rubber gasket, it is very important to make sure the flange on the sump pan is flat! and I mean VERY flat!! I spent about 2 hours getting mine flat (a straight edge and feeler gauges so I could just about get a 1 thou (0.0001") gauge in) the critical point is where the bolt holes are as these tend to "dome" upwards, I got mine level using a 10mm bolt & nut with washers on the flange face and suitable size socket to fit on the underside of the flange, then tighten the bolt until the flange face is flat, it's not easy but worth the effort,
I wouldn't use any type of sealer, and be very careful tightening the bolts, as others have said in this string (Colin and Jorg) hope this helps.
Best Regards DAV8
Dave.
I wouldn't use any type of sealer, and be very careful tightening the bolts, as others have said in this string (Colin and Jorg) hope this helps.
Best Regards DAV8
Dave.