Yesterday I changed the float valve (I think the previous one lasted for 12 years or so) in the toilet & also discovered that the overflow pipe was soaking our "picnic deck" & splashing all over the garden (which is muddy enough already). Extending the pipe down & around to a more convenient outlet is not urgent but is on the to-do list.
Is there a rule of thumb for the minimum slope it needs to have in order to avoid the risk of freezing? (This is 21.5 mm PVC. The current pipe sticks straight out through the brick wall.)
BTW, I went to B&Q today yesterday to get the float valve & various other things, & thought I'd go ahead & get some pipe, elbows, & couplins for extending the pipe. After looking in the same area for several minutes for the PVC cement, I gave up & asked someone, who told me to ask at the tills for it, because it's in the "hazardous cabinet". (OK, it's an age-restricted item.) So I took everything up to one of the non-self-service tills & asked the guy for it. He said he didn't know but would scan everything else then find it. Then he asked someone else, who tried to open his hazardous cabinet but it was locked. Then she looked in another cabinet, then came back with the keys ... then said she'd go look. About 10 minutes later, she came back & asked "Do you have a trade card?"
"No."
"We only sell that in the trade counter."
"So you have it in the store but you only sell it to trade customers?"
"That's right. I'm sorry. I think Screwfix will sell it to you."
Huh?!