My drain pipes are not draining. If you use the shower.. diswasher.. kitchen and bathroom sinks.. my toilet back talks.. gulp gulp noise.. if you use the toilet and does not flush.. it just raises the water... I have snaked and used chemicals to try to unclogg the pipes.. please help

It appears your sewer main is blocked and needs to be cleaned. Call drain cleaning contractor who will insert snake into your sewer pipe and will clear the blockage. At this point, I think your sewer problem is beyond Draino solution needs to be handled by a professional.

To locate drain cleaning contractor, consult Yellow Pages or Google it.

Hope that helps

Milo