iloveoscars702;2817411; said:and what dr joe said.. would it be a good idea to add a preasure gauge to be safe?
There's no need for a pressure guage. He really was pointing out that you should ensure that you have the right pump for the job.
Size of the pump would depend on the size of the filter that you are making. If you go with Dr. Joe's measurements, you could put a fairly large pump on it.