Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: ordered this yesterday but didn't realize anything about a restrictor. does it need to be removed for more pressure
Document: I'm not sure who would need more flow, unless their water pressure is just awful.My old Moen shower head had a similar o-ring & plastic seating plate mechanism, so I tried an experiment. First, I removed its o-ring; this improved the flow, but the shower experience was markedly inferior to the Speakman. I then used a surgical retractor to attempt to remove the plastic seating plate in back of the o-ring.
This O-Ring removal effectively doubles the volume of water pushed through the shower head. Like another reviewer has stated there is really no need to pull the flow restrictor (white plastic part) as you will be very pleased with the pressure without destroying this part. Plus if you find removing the O-Ring leads to too much water pressure, it will be simple to place the O-Ring back in the shower head.
And yes, I took out the o-ring water restrictor. My personal opinion is that it adds at least 25% more water flow. So if you are good with the restrictor in, fine, but if you need more pressure, for whatever reason, I would remove it. The 8 jet provides less pressure or force than the 6 nozzle model but the 8 nozzle model gives you a wider spray area. At the end of the day, I prefered the more concentrated 6 nozzle spray.
no need to conserver water on a well so removed the water saving plastic and o ring love this shower head. Hope it last is very heavy.
It was a decent performer with no modifications, especially on the finer spray settings, but it did seem to be lacking adequate flow on the heavier sprays. The black o-ring inside the neck is indeed the flow restrictor that needs to be removed. Was not able to remove it without pulling out the 4 white teeth as mentioned in another review. Pulled out those 4 white plastic teeth, removed black o-ring, and reinstalled. Water flow probably doubled.
Awesome. Just what I hoped for--matched the hype. I like really hot showers. My old rain water head didn't mix the water properly, there would be one stream of scalding water surrounded by cooler streams. This head mixes the water. I didn't need to remove the flow restrictor, as some others have mentioned, to get robust flow.The adjustment lever for flow type is effective and easy. It is beautiful. Service from Amazon was great.
Bought this to change out cracked plastic junk. After reading all the reviews, I bought it but am a little disappointed in the power of the spray. It is good but not anything to write home about, expecially for the price! I've got good regulated pressure off the county water main (60psi) and my home is plumbed with 1/2&#34; copper to the shower so I was expecting a little more. Yes, I did take off the o ring, which made a  little difference.
I realized that the showers I had enjoyed in several hotels recently were all Speakman showerheads! Solid brass! It's simple to install and simple to use: very smooth transitions between flow strengths. As noted in other reviews, I removed the O ring with needlenose pliers. FABULOUS flow and pressure. Very, very pleased and impressed!
I bought this item to replace a much cheaper Moen showerhead that was producing water streams that were too forceful at times due to the local water pressure. The Speakman has performed well. I like the adjustability of the stream. Installation was quick and easy and it looks great. I removed the tiny O-ring to restore normal flow. If you want a super low flow showerhead, don't buy this one.
Just what I was looking for. Pressure and spray are very good. The adjustment to remove the flow restrictor was fairly easy but not necessarily simple to get done. I would absolutely recommend this shower head.
Answer: yes