Shower pressure I need help!

what about the basin in the washroom, is that poor too....or as good as the kitchen?

First thing that I would do is to soak the shower head in white vinegar to get rid of any calcium scale as a starter and then, as BB asks is there good pressure at wash basin?

Yes a good few things to check out given the age of the outfit. Pipework needs checking/cleaning, showerhead cleaning, check how efficient your pump is. Sometimes the size of the showerhead can be crucial as well. Hope you get it sorted. We have a 1984 van, pump is good, straight short runs to delivery point have kept our pressure good for such an old van.

What 1984 van ,have you got takethedogalong ? Makes my 1994 Swift new !! Bet it was better built than mine Derek

It’s a Cotswold Windrush DC, we bought it in fantastic condition in 1996.  Super little van, coachbuilt, only small a 13 ft 2 berth. She hasn’t been out for a couple of years, being refurbished when we are home to do it. Got a tiny bit of damp in one small place, but otherwise sound. That will get fixed as part of refurb. OH has put in new shower tray, new heater, new water heater, and we are looking to replace hob as well possibly. Then it’s all cosmetic stuff, inside and out. Too many holidays at moment, and OH was too ill to do much for a couple of years, but we are enjoying our little MH as well!😁

The shower is the tap it pulls out to attach to the wall.

I will try the white vinegar thank you

We have similar, probably obvious but have you checked the pipe for kinks? It can easily happen as you feed it back down 😉. Is the hose properly screwed onto fixing? Does the water flow freely without the shower head attached? Do check the vanity cupboard isn't damp, leaks may be evaporating or finding an exit route. Could be scale in the shower head white vinegar won't hurt. Do keep us posted.

Lovely little van , as you say coachbuilt . I still miss gas lighting from my parents 14 foot 4 berth 

We have one gas mantle. We used it years ago, but never nowadays. OH used to like to play at camping every now and then......😂 Compared with today’s vans, it’s simple and uncomplicated, easy to sort out any problems. Got all we need.😁