Unless you find the fuel filters substantially clogged and the strainer substantially clogged, the tank is fine.

Now, if the fuel filters, when originally changed, cured the problem, then you must keep an eye on them and change them when the problem recurs.

It could be a situation where you have bad fuel that loads up the filters in a short period of time. This is not common, but, it could be the case if you continually fill up at a station that does not move quite a bit of diesel.

The next time the issue occurs, change the secondary fuel filter yourself, and see if the problem goes away for you.

If not, then it's time to see what the fuel pressure from the lift pump is.

I cannot see any possibility of the tank causing the issue if your strainer is perfectly clean.

Is it possible that the vehicle was sitting for quite a period of time prior to your purchase?