Thanks for your effort. Usually, water board supplies water by 1/2" pipe to domestic premises. So 1/2" non-return valve should be easy and better for this job. Secondly, Tank output is gradually reduced from 50mm to 40mm for the main line. 1/2" input pipe differential connection is useless when main output pipe is 1".
Please change the text. Very good video! Very inormative. But, couple of things make the value reduced. Heading eka danakota hariyatama spelling danna. පෙසර් - > ප්රෙෂර්. Reducion socket neme -> Reducer Godak denek balana ewa nisa tikak kalpanawena saha hoyala balala headings danna one neda
Sar. Mama enne apartment ekaka.eka tattu 4i ,mama enne 4weni tattu we, ape wahale salab eka uda tamai watura tankiya tiyenne,mata puuwan weida Thanks sar
24. Hours commercial water supply eakak thiyenna oane me system eakata. Man danna widihata lankawe 24 hours water supply eaka thiyenne city keeyakada. Samaharak wachanawala pronunciation weradyi. Eawa hadaganna.