How to make an One Way Valve at home using only a PVC pipe and the necessary tools. Best for small projects,air and water pumps,fountains,anything small with low pressure. However this design is ideal,making this out of thick metal pipe with welded caps
![[Gomma hands]How to crochet a carnation for mother's day([곰마핸즈]어버이날 카네이션 코바늘뜨기)](https://cdn.mycrafts.com/i/1/7/89/gomma-hands-how-to-crochet-a-iQMt-m.jpg)
