Hello. I'm connecting a long run of 50mm solvent weld waste pipe from a shower to the stack (compliant with regs hence 50mm). The soil stack branch is Hunter and I bought a Hunter solvent weld boss adapter to fit on it. However, the waste pipe (Floplast I think)is a loose fit in the adapter. What is the correct way to deal with this? Would a Floplast branch fit the Hunter stack? EDIT. Ive just found that the Floplast solvent fittings fit very tightly on the Hunter branch boss. It would appear that the Hunter branch is both push fit AND solvent weld compatible. Before I ruin a perfectly good branch fitting, can anyone confirm that? Many thanks.