Keeping Sliding Doors Runing Smoothly

[geoff]

My sliding doors get in a heck of a state mostly down to my dogs being on and off the beach - they jump in and out and the sand gets in everywhere.

The doors are hard to get moving / close from the fully open position and rumble like the devil as they slide both ways.

I use a garden hose with the trigger gun set to " jet " to direct water into and along both top and bottom rails ( dooors open whilst doing so ! ) and work the doors open and shut whilst washing the gubbings out

This does the trick for me

Once washed out it is best to lube everything if you can

I buy WD40 liquid by the gallon ( I have lots of other uses / hobbies ) and using a hand squirter much like a kitchen cleaner bottle give the gubins a good sluicing with the stuff, does the job.
Otherwise use an aerosol oil spray or a spray grease - as said Lidl etc often have decent stuff at agreeable prices