Suiton And Water Sources

[Nickito]

I just had a few questions regarding Suiton and some stuff I was confused/curious about.

SPOILER: Click to show

Teppoudama (Bullet)
Rank: C
Range: Close (0m ~ 5m), Mid (5m ~ 10m), Far (10m+)
Type: Offensive
Handseals: 5
Chakra Consumption: Mid.

Teppoudama is a Ninjutsu technique utilizing the Water Element. After forming the necessary handseals, the user will manifest a large amount of water in their mouth which they can then spit at their opponent as a large spherical projectile (the size of a baseball).

Suijinheki (Water Encampment Wall)
Rank: B
Range: Close (0m ~ 5m)
Type: Defense
Handeals: 6
Chakra Consumption: Mid

Suijinheki is a Ninjutsu technique utilizing the Water element. The ninja will first do a string of hand seals and then proceed to blow out a jet of highly pressurized water from their mouth, in order to act as a water barrier from an incoming attack.

Those techs don't have the note saying that water isn't required, but the water used is generated inside of the user, so I was wondering if that lack of the note was a mistake or if there actually does need to be a water source?

And I was also wondering if you'd be able to use water from a tech that didn't require a water source for one that does? Like, if I use Water Trumpet, would I be able to form Water Clones or use another tech (within reason, not some crazy large jutsu) by using that water I created?

[Django]

As a general rule, techniques in which you shoot something out of your body do not require an outside source.

[Trigga]

Simply put, some techniques can engender the element in question internally, via chakra molding and nature transformation. However, other techs simply can't be manifested within the body and thus need an external source. It wasn't a mistake-- there are just techinques that can be preformed without seeking an outside influence. And to answer the second question, as long as its within reason and you can supplement sufficient enough water, you should be able to use your self-imposed water to form other techniques that are source-dependent.

[Nickito]

Cool, thank you!