PVC is more flexible than ABS, but ABS is stronger and more shock resistant. ABS is better at handling severely cold temperatures, but it can warp with exposure to direct sunlight. PVC is thought to be better at muffling the sound of running water. In most North American markets, the two types are priced similarly
1.City找来了去年给大家装栏杆的contractor公司,派来了几个老莫,开挖很深后发现,他们装的fence post没有弄坏我的下水道,是原房主的旧的fence post弄坏了。我想完了,我得付钱了。很幸运,他们在City的监督下还是帮我弄好了。
2. 他们和City的人都说我原房主用的那种黑胶PVC太cheap了(不知道叫什么),只有一层的那种,说我的管道以后还可能破。考虑到我还想出租10多年,我把老莫头目拉到一边,问他要是把我院子 50feet 左右的管道全换成4英寸的PVC,再加上两个clean-out (一个靠房子slab之外,一个靠City下水道那里,这个是他提出的不知道有没有必要呢?),他说要4000。 我前几天两个老美公司开价是1.5万和9千。我赶紧兴高采烈地答应了,他可能没想到我这么爽快,还确认一下,对朴实的底层劳动人民,我就不讲少100-200了。
其实我的水管工用录像头看下水道时说还是挺好的,但也不是很新的。 房子50年了,下水道不知原房主何时换成这种便宜的管道。我4000一劳永逸换成PVC是不是很有必要的?
PVC is more flexible than ABS, but ABS is stronger and more shock resistant. ABS is better at handling severely cold temperatures, but it can warp with exposure to direct sunlight. PVC is thought to be better at muffling the sound of running water. In most North American markets, the two types are priced similarly