![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiaSY-U9W76Hz2_HG3Zzb_Rz0YEuhewUlAxziWW3qGu3lapmJD4hTadi6eITb9jN8Iej-ZhSaktucY6UJ6zb8cHV9RMtInaFARWGL-IAPdNKlaDdyQB-lRucqYvivW7r7R5OWE_APyAotw/s320/DSCN2811.JPG)
The 6'' acrylic dome mounted on a flange fabricated from flat 1/4" PVC with a heavy gauge red rubber gasket. I have doubled the number of screws holes as early tests show small deformation of the
acyclic between screws leading to possible leaks. I have replaced the
philips head screws with stainless
allen bolts (8-32) with nylon lock nuts.