هناك ماء حول الغسالة.

Here, هناك gives the sentence the sense of there is / there are.
So هناك ماء means there is water.

On its own, هناك literally means there, but in sentences like this it often works as an existential expression, like English there is.

In Arabic, the present-tense to be is often not stated in simple sentences.

So Arabic can say:

• هناك ماء = There is water
• literally: there water

This is normal Arabic structure, not a missing word.

Because the sentence is talking about some water, not a specific previously identified water.

So:

• ماء = water / some water
• الماء = the water

In this sentence, the idea is simply that water is present around the washing machine, so the indefinite form is natural.

In fully vocalized MSA, yes. It would normally be:

• ماءٌ

So the fully vowelled sentence would be:

• هُناكَ ماءٌ حَوْلَ الغَسّالَةِ

In normal everyday writing, these short case endings are usually omitted, so you just see ماء.

It is pronounced roughly māʾ.

Important points:

• the ا gives a long aa sound
• the final ء is a hamza, a glottal stop

So it is not just maa smoothly flowing; it ends with a small stop: māʾ.

حول means around or surrounding.

So:

• حول الغسالة = around the washing machine

It tells you where the water is located.

Because حول is followed by a noun in the genitive.

So in full vocalization:

• حولَ الغسالةِ

The final kasra on الغسالةِ shows that it comes after حول.

This is very common in Arabic: after a preposition-like word, the following noun is usually genitive.

Because it means the washing machine, not a washing machine.

So:

• غسالة = a washing machine
• الغسالة = the washing machine

In context, this usually refers to a specific washing machine, probably one already known from the situation.

Because غسالة is a grammatically feminine noun, and the ending ـة is a very common sign of feminine nouns.

That does not necessarily mean the object is biologically female; it is just a grammar category. If you later referred to الغسالة with a pronoun or adjective, it would normally take feminine agreement.

Yes. يوجد ماء حول الغسالة is also correct and means essentially the same thing: There is water around the washing machine.

A simple comparison:

• هناك ماء حول الغسالة = very common, straightforward existential structure
• يوجد ماء حول الغسالة = also common, using the verb يوجد meaning exists / is found

Both are good MSA.

Yes, but the given order is the most neutral and beginner-friendly.

The sentence:

• هناك ماء حول الغسالة

naturally presents:

1. existence — there is
2. the thing — water
3. the location — around the washing machine

Arabic can sometimes move parts of the sentence for emphasis, but this version is the clearest standard pattern for learners.

A fully vocalized version is:

• هُناكَ ماءٌ حَوْلَ الغَسّالَةِ

Breakdown:

• هُناكَ = there is / there
• ماءٌ = water
• حَوْلَ = around
• الغَسّالَةِ = the washing machine

This is useful if you want to see the case endings clearly, even though they are usually not written in ordinary text.