no chaulk, silicon yes https://www.toolstation.com/shop/Adhesives+%26+Sealants/d180/Sanitary+Sealants/sd3202/Evo-Stik+Trade+Sanitary+Silicone+280ml/p16592
the drums are good but sewer plastic pipes are stronger and a hardware shop used the concrete ones stores outside between two walls for all types of pipe and tube stock