Stop using that word 'pump', please. These are market fluctuations, and what we're seeing isn't the result of a concerted effort by Chinese gamblers, buyers, sellers, or anyone else. The market just ends up doing what it always does, which is moving up and down.
Whenever the price increase significantly, people will refer to 'pump' as they worry about suddenly drop back so hard.
Increases $50-100 a day looks significant in my point of view, and decreases $100-300 in a day, we will see another panic sell.
Happily to see the price rise again but how could OP so sure it's nothing related to Chinese regarding the market fluctuations?
I'm not so sure as China exchanges such as Huobi and BTCC has the highest price rate more than others.